Perhaps you should try some spelling variations:
ve triet » va trien, su triet
truc van » truc va, thuc van, truc ban
hanh ve » hanh vi, hanh va, hanh kem
hanh de » hanh kem
hieu ve » hieu va, hieu van
ky lang » ky nang, ky dang, ky tang
te cac » tu cac, ve cac, te cao
ha hoi » hoa hoi, xa hoi, va hoi
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky lang ((ha hoi) or (ha noi)). hieu ve cau truc van ((hanh de) or (hanh ve)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky lang ((ha hoi) OR (ha noi)). hieu ve cau truc van ((hanh de) OR (hanh ve)) ve triet.
• Adding a wildcard symbol may retrieve word variants: te cac ky lang ((ha hoi) or (ha noi)). hieu ve cau truc van ((hanh de) or (hanh ve)) ve triet*.