Perhaps you should try some spelling variations:
thien van » thi van
pham thuc » phap thuc, pham chuc, nham thuc
tham thuc » nham thuc, tam thuc, thai thuc
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau

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 cao hoi. thien van ((pham thuc) or (tham thuc)) va hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang cao hoi. thien van ((pham thuc) OR (tham thuc)) va hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang cao hoi. thien van ((pham thuc) or (tham thuc)) va hanh lai cua triet*.