Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet
hanh lai » hanh lam, hanh tai, thanh lap
va triet » va thiet, va trien, ve triet
van cac » van hac, van cau, van bac
vu cac » va cac, tu cac, ve cac
xuc va » tuc va, luc va, xac 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: vu cac ky nang x hoi. thien van cac ((xuc va) or (duc va)) hanh lai ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cac ky nang x hoi. thien van cac ((xuc va) OR (duc va)) hanh lai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cac ky nang x hoi. thien van cac ((xuc va) or (duc va)) hanh lai ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: vu cac ky nang x hoi. thien van cac ((xuc va) or (duc va)) hanh lai ((cua triet) OR (va triet))*.