Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
thien van » thi van
manh hai » minh hai, thanh hai, van hai
lanh hai » thanh hai, lang chai, lanh dao
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
tuc va » thuc va, truc va, tuc xa
ma hoi » mai hoi, ma hoa, me hoi

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 ((ma hoi) or (xa hoi)). thien van cam tuc va ((lanh hai) OR (manh hai)) chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((ma hoi) OR (xa hoi)). thien van cam tuc va ((lanh hai) OR (manh hai)) chau triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((ma hoi) or (xa hoi)). thien van cam tuc va ((lanh hai) OR (manh hai)) chau triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((ma hoi) or (xa hoi)). thien van cam tuc va ((lanh hai) OR (manh hai)) chau triet*.