Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
dang xay » dang van, van xay
bo sach » co sach, hoc sach
vai cua » dai cua, hai cua, lai cua
luc van » luoc van, luu van, duc van
xuc van » duc van, xuc ban, thuc van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cua te » cua tu

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

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