Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
su triet » su viet, su tien, ve triet
sach vu » sach va, sach tu, sach uu
dan hai » doan hai, dang hai, dan khai
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
cao hoc » co hoc, cho hoc, chat hoc
vu nang » vuc nang, va nang, vu dang
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau

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 vu nang cao hoc. hieu ((ve cham) or (va cac)) xuc va dan hai ((chau triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach vu nang cao hoc. hieu ((ve cham) OR (va cac)) xuc va dan hai ((chau triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach vu nang cao hoc. hieu ((ve cham) or (va cac)) xuc va dan hai ((chau triet) or (su triet))*.