Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
sach thi » sach thu, sach tai, sach thieu
vu sach » vu bach, su sach, vu khach
xuc van » duc van, luc van, vuc van
va viet » hoa viet, san viet, mai viet
nang ho » nang hoc, nang co, tang ho
va cam » va cham, va cac, va cao
nang o » nang co, nang ro, nang x
vai va » mai va, dai va, hai va
ve cam » ve cham, ve cac, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach thi ((nang o) or (nang ho)) hai. hieu ((ve cam) or (va cam)) xuc van hanh vai va viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach thi ((nang o) OR (nang ho)) hai. hieu ((ve cam) OR (va cam)) xuc van hanh vai va viet.
• Adding a wildcard symbol may retrieve word variants: vu sach thi ((nang o) or (nang ho)) hai. hieu ((ve cam) or (va cam)) xuc van hanh vai va viet*.