Perhaps you should try some spelling variations:
va trinh » van trinh, va tinh, lap trinh
trinh do » trinh ky
cua viet » ca viet, hoa viet, cua vat
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
te lai » te tai, te bai
lai ky » sai ky, dai ky
do cua » doi cua, co cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te lai ky lang xa hoi. ((hieu ve) or (hieu va)) am thuc va trinh do cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te lai ky lang xa hoi. ((hieu ve) OR (hieu va)) am thuc va trinh do cua viet.
• Adding a wildcard symbol may retrieve word variants: te lai ky lang xa hoi. ((hieu ve) or (hieu va)) am thuc va trinh do cua viet*.