Perhaps you should try some spelling variations:
van chat » cao chat
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
va triet » va thiet, va trien, ve triet
tuc van » thuc van, truc van, tuc va
te dan » te danh, tre dan, ke dan
dan ky » van ky
va cam » va cham, va cac, va cao
dai va » mai va
x hoi » xa hoi, o hoi, x ho

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

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