Perhaps you should try some spelling variations:
sach vaya » sach va, sach hay, sach nay
sach vay » sach va, sach hay, sach nay
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
ve triet » va trien, su triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach vay) or (sach vaya)) nang xa hoi. hieu ve cham xuc ((van ban) or (ban hanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach vay) OR (sach vaya)) nang xa hoi. hieu ve cham xuc ((van ban) OR (ban hanh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach vay) or (sach vaya)) nang xa hoi. hieu ve cham xuc ((van ban) or (ban hanh)) vi ve triet*.