Perhaps you should try some spelling variations:
thien van » thi van
nam thuoc » nam thuc, nam thu, nha thuoc
cua triet » cua viet, su triet, va triet
thuoc va » thuc va, thuoc ma, thuong va
tu cach » tu cac
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va cua » va chua, via cua, ca cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) ky nang xa hoi. thien van nam thuoc va hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang xa hoi. thien van nam thuoc va hanh va cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky nang xa hoi. thien van nam thuoc va hanh va cua triet*.