Perhaps you should try some spelling variations:
doan truc » doan trung, xuan truc, doan tu
cua triet » cua viet, su triet, va triet
truc van » truc va, thuc van, truc ban
van xanh » van anh, van hanh, van manh
su sach » so sach, vu sach
ty nang » ky nang, ty hang, ly nang
va doan » va doanh, van doan, va dan
xanh di » danh di, vanh dai, xanh tai
di cua » dai cua, doi cua, de cua

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 ((ty nang) or (ty xang)) xa hoi. lieu va doan truc van xanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ty xang)) xa hoi. lieu va doan truc van xanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ty xang)) xa hoi. lieu va doan truc van xanh di cua triet*.