Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sanh tai » sang tai, hanh tai, anh tai
tai lang » tai cong, thi lan, tai san
so sanh » do sanh
lang xa » lang ha, dang xay, lang van
ve cau » ke cau, va cau, le cau
ve cac » va cac, vien cac
luc va » tuc va, loc va
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: so sanh tai lang xa hoi. hieu ((ve cau) or (ve cac)) ((duc va) or (luc va)) hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh tai lang xa hoi. hieu ((ve cau) OR (ve cac)) ((duc va) OR (luc va)) hanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: so sanh tai lang xa hoi. hieu ((ve cau) or (ve cac)) ((duc va) or (luc va)) hanh vi cua viet*.