Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
truc van » truc va, thuc van, truc ban
hanh ve » hanh vi, hanh va, hanh kem
ky tang » ky nang, ky dang, kho tang
hanh de » hanh kem
tang ha » lang ha, tang ma, trung ha
hieu va » lieu va, hieu qua
va cau » van cau, va cac, va dau
ha hoi » hoa hoi, ha noi, xa hoi
te cac » tu cac, ve cac, te cao

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 tang ha hoi. hieu va cau truc van ((hanh de) or (hanh ve)) ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky tang ha hoi. hieu va cau truc van ((hanh de) OR (hanh ve)) ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te cac ky tang ha hoi. hieu va cau truc van ((hanh de) or (hanh ve)) ((cua triet) or (va triet))*.