Perhaps you should try some spelling variations:
cham xuc » chat xuc, cham soc, pham duc
nang dai » nang dau, nang tai, lang dai
minh vi » minh voi, dinh vi, minh va
hieu ve » hieu va, hieu van
sach ty » sach tu, sach thu, xach tay
dai hoi » dai hoc, dai hai, dai moi
su viet » so viet
vi su » va su, ve su, ki su

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

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