Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hanh tai » thanh tai, hang tai, han tai
cau tren » cu tren, dau tren, ca tren
dau tien » van tien
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va nam » van nam, ha nam, va nay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. lieu va nam thuc va hanh tai ((cau tren) or (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. lieu va nam thuc va hanh tai ((cau tren) OR (dau tien)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. lieu va nam thuc va hanh tai ((cau tren) or (dau tien))*.