Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua viet » ca viet, hoa viet, cua vat
va thanh » gia thanh, ban thanh, va tinh
tang van » dang van, hoang van, trong van
nam thuc » nam thuoc, am thuc, nam thu
vai cua » dai cua, hai cua, lai cua
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
dai ky » dan ky, dai ly, sai ky
vu dai » vi dai, va dai, vu hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu dai ky ((lang xa) or (tang van)) hoi. ((hieu ve) or (lieu va)) nam thuc va thanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu dai ky ((lang xa) OR (tang van)) hoi. ((hieu ve) OR (lieu va)) nam thuc va thanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: vu dai ky ((lang xa) or (tang van)) hoi. ((hieu ve) or (lieu va)) nam thuc va thanh vai cua viet*.