Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
vai cua » dai cua, hai cua, lai cua
cach tu » cach thuc
nang ma » tang ma, sang ma, nang cao
sach tu » sach thu, sach ty, sach uu
xuc van » duc van, luc van, vuc van
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach tu) or (cach tu)) nang ma hoi. hieu ((ve cam) OR (ve cac)) xuc van hanh vai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (cach tu)) nang ma hoi. hieu ((ve cam) OR (ve cac)) xuc van hanh vai cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) or (cach tu)) nang ma hoi. hieu ((ve cam) OR (ve cac)) xuc van hanh vai cua su".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (cach tu)) nang ma hoi. hieu ((ve cam) OR (ve cac)) xuc van hanh vai cua su*.