Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hoc truc » hoc thuc, hoc trung, hoc thuoc
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
van hoc » van hoa
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
su sach » vu sach
y nang » ky nang, ly nang, v nang
hoi ve » hoi va, moi ve, noi ve
hai vu » hai va

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) or (so sach)) y nang xa hoi. hieu van hoc truc va danh ((hoi ve) or (hai vu)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang xa hoi. hieu van hoc truc va danh ((hoi ve) OR (hai vu)) triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y nang xa hoi. hieu van hoc truc va danh ((hoi ve) or (hai vu)) triet*.