Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vi » hanh vi, thanh va, thanh ve
bach ky » bac ky
nang ma » tang ma, sang ma, nang cao
hieu vi » hieu voi, hieu ve, hien vi
hieu va » lieu va, hieu qua
duc gia » quoc gia
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky nang ma hoi. ((hieu vi) OR (hieu va)) pham duc gia thanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach ky nang ma hoi. ((hieu vi) OR (hieu va)) pham duc gia thanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang ma hoi. ((hieu vi) OR (hieu va)) pham duc gia thanh vi cua triet*.