Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
cham xuc » cam xuc, cham soc, pham duc
su sach » so sach, vu sach
van tai » von tai, van tuan
hieu va » lieu va, hieu qua
nang xa » lang xa, nang ma, mang xa
va hieu » van hieu, va dieu, va hien
tai va » thai va, mai va, tri va

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 y ((nang xa) or (nang x)) hoi. hieu va ((cham xuc) OR (chat xuc)) va van tai va hieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (nang x)) hoi. hieu va ((cham xuc) OR (chat xuc)) va van tai va hieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang xa) or (nang x)) hoi. hieu va ((cham xuc) OR (chat xuc)) va van tai va hieu".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) or (nang x)) hoi. hieu va ((cham xuc) OR (chat xuc)) va van tai va hieu*.