Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
thanh lap » thanh san, phan lap, thanh hai
thien van » thi van
hanh lai » hanh lam, hanh tai, thanh loi
tu sach » thu sach, su sach, te sach
hoc duc » hoc duoc, hoc nuoc, hoc thuc
sach ky » sac ky, sach y, sach ty
van hoc » van hoa
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: tu sach ky nang ((ma hoi) or (xa hoi)). thien van hoc duc va ((hanh lai) or (thanh lap)) chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((ma hoi) OR (xa hoi)). thien van hoc duc va ((hanh lai) OR (thanh lap)) chau triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((ma hoi) or (xa hoi)). thien van hoc duc va ((hanh lai) or (thanh lap)) chau triet*.