Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hanh dai » hanh tai, hanh dao, vanh dai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
te sai » te tai, te bai, te hai
te lai » te tai, te bai
nam tu » nam thu
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sai) or (te lai)) ky nang xa hoi. hieu ve ((nam thuc) or (nam tu)) va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sai) OR (te lai)) ky nang xa hoi. hieu ve ((nam thuc) OR (nam tu)) va hanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sai) or (te lai)) ky nang xa hoi. hieu ve ((nam thuc) or (nam tu)) va hanh dai cua te*.