Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
nam quan » nam huan, nam qua, sam quan
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
nam mua » nam cua, nam qua, nam xua
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. thien van ((nam quan) or (nam mua)) ((van hanh) OR (ban hanh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. thien van ((nam quan) OR (nam mua)) ((van hanh) OR (ban hanh)) di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. thien van ((nam quan) or (nam mua)) ((van hanh) OR (ban hanh)) di cua triet*".