Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tinh ca » tinh cao, tinh cua, tinh va
va tinh » may tinh
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
hieu ve » hieu van
xu lang » cu lang, xu dang, xu quang
tu lang » cu lang, tu lanh, tu quang
tuc va » thuc va, truc va, tuc xa
ca cua » co 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 ((tu lang) or (xu lang)) xa hoi. ((hieu ve) or (hieu va)) cam tuc va tinh ca cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu lang) OR (xu lang)) xa hoi. ((hieu ve) OR (hieu va)) cam tuc va tinh ca cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu lang) or (xu lang)) xa hoi. ((hieu ve) or (hieu va)) cam tuc va tinh ca cua viet*.