Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
nang ma » tang ma, sang ma, nang cao
truc va » thuc va, thuc vat, trung va
sinh v » sinh va, sinh y, sinh vat
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
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: cho sinh v nang ma 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: cho sinh v nang ma hoi. hieu ((ve cam) OR (ve cac)) truc va thanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: cho sinh v nang ma hoi. hieu ((ve cam) or (ve cac)) truc va thanh vi cua viet*.