Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
manh hai » lanh hai, minh hai, thanh hai
hieu van » hieu va, thien van, hieu ve
ly hang » ly quang
cam tuc » cam xuc, cam tu, nam thuc
va manh » van manh, va danh, va hanh
hai cau » hai chau, hai chu, hai hau
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa

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 ((ky nang) or (ly hang)) ma hoi. ((hieu van) or (lieu va)) cam tuc va manh hai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky nang) OR (ly hang)) ma hoi. ((hieu van) OR (lieu va)) cam tuc va manh hai cau treo.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky nang) or (ly hang)) ma hoi. ((hieu van) or (lieu va)) cam tuc va manh hai cau treo*.