Perhaps you should try some spelling variations:
sach han » sach tham, sach danh, sach nang
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
sach va » sach xa, sach ha, sach dao
su tien » su kien, su hien, tu tieng
vi su » va su, ve su, ki su

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 han) or (sach va)) ((nang ma) or (tang ma)) hoi. hieu ve cham xuc van hanh vi su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach han) OR (sach va)) ((nang ma) OR (tang ma)) hoi. hieu ve cham xuc van hanh vi su tien.
• Adding a wildcard symbol may retrieve word variants: tu ((sach han) or (sach va)) ((nang ma) or (tang ma)) hoi. hieu ve cham xuc van hanh vi su tien*.