Perhaps you should try some spelling variations:
dat tren » dat trong, dua tren
cam truc » cau truc, nam truc, lam truoc
hanh vai » hanh vi, hanh va, hanh tai
nang ma » tang ma, nang cao, mang may
hieu ve » hieu va, hieu van
sang ma » tang ma, sang tao, mang may
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
vai dat » cai dat, va dat, van dat
can ky » van ky, dan ky, ban ky
ve cam » ve cham, ve cac, va cam
tu can » tu ban, tu cac, thu canh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky ((sang ma) OR (nang ma)) hoi. hieu ve cam truc va hanh vai dat tren~.
• Adding a wildcard symbol may retrieve word variants: tu can ky ((sang ma) or (nang ma)) hoi. hieu ve cam truc va hanh vai dat tren*.