Perhaps you should try some spelling variations:
sach kem » hanh kem
van hanh » van thanh, ban hanh, van anh
hanh via » hanh vi, hanh va, anh va
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
via cua » gia cua, gian cua, giau cua
cua tuc » cua duc, cua tu, cua thuoc
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach kem) or (sach y)) nang ((x hoi) or (x ho)). hieu ve cam xuc van hanh via cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sach y)) nang ((x hoi) OR (x ho)). hieu ve cam xuc van hanh via cua tuc.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sach y)) nang ((x hoi) or (x ho)). hieu ve cam xuc van hanh via cua tuc*.