Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
nang cau » nang cao, hang cau, nang dau
truc va » thuc va, thuc vat, trung va
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
v nang » va nang, vu nang, van nang
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) or (do sanh)) v nang cau hoi. hieu ((ve cam) OR (ve cac)) truc va thanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (do sanh)) v nang cau hoi. hieu ((ve cam) OR (ve cac)) truc va thanh vi cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sanh) or (do sanh)) v nang cau hoi. hieu ((ve cam) OR (ve cac)) truc va thanh vi cua viet*".