Perhaps you should try some spelling variations:
van chat » cao chat
hanh dai » hanh tai, hanh dao, vanh dai
va triet » va trien, ve triet, cua triet
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
te ban » te bao
ban ky » van ky, dan ky
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ban ky nang x hoi. hieu ((va cam) or (van chat)) thuc va hanh dai ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ban ky nang x hoi. hieu ((va cam) OR (van chat)) thuc va hanh dai ((va triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: te ban ky nang x hoi. hieu ((va cam) or (van chat)) thuc va hanh dai ((va triet) or (va thiet))*.