How many word combinations are there

There are several word combinations:

Seedling,

Grain field,

Ivo,

King of grain,

Wheat,

Jiahe,

Peace,

Harmony,

Grain of life,

Barnyard grass,

Marijuana,

He Ying,

Frost grains,

Flags,

Grass,

Hay,

Hull,

Chou He,

Yang he,

He Nong,

He Dan,

Barrel,

He nai,

Valley,

Lying mother,

Sheikh,

Crops,

He Hui,

Late rice,

Brother he,