Perhaps you should try some spelling variations:
cac khoi » cac thoi, cac khoan, cach thoi
te sach » toc sach
hang di » hang doi, hang vi, hang dien
luc van » luoc van, luu van, duc van
xuc van » duc van, vuc van, xuc ban
hieu ve » hieu va, hieu van
cua tuc » cua duc, cua tu, cua thuoc
dai hoi » dai hoc, dai hai, dai moi
ve cac » va cac, vien cac
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
di cua » dai cua, doi cua, de cua

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 v nang ((dai hoi) or (cac khoi)). hieu ve cac ((xuc van) or (luc van)) hang di cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang ((dai hoi) OR (cac khoi)). hieu ve cac ((xuc van) OR (luc van)) hang di cua tuc.
• Adding a wildcard symbol may retrieve word variants: te sach v nang ((dai hoi) or (cac khoi)). hieu ve cac ((xuc van) or (luc van)) hang di cua tuc*.