Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tang van » dang van, hoang van, trong van
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
ky tang » ky nang, ky dang, kho tang
so sanh » do sanh
hieu ve » hieu van
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: ((tu sach) or (so sanh)) ky tang van hoa. ((hieu ve) or (hieu va)) cam xuc van hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sanh)) ky tang van hoa. ((hieu ve) OR (hieu va)) cam xuc van hanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sanh)) ky tang van hoa. ((hieu ve) or (hieu va)) cam xuc van hanh vi cua viet*.