Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hieu van » hieu va, thien van, lieu va
lanh hai » manh hai, thanh hai, lang chai
danh hai » dang hai, manh hai, danh hau
van hoc » van hoa
su sach » vu sach
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
hoc tuc » hoc thuc, hoc truc, hoc tu
tuc va » thuc va, truc va, tuc xa

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)) ky nang xa hoi. hieu van hoc tuc va ((danh hai) OR (lanh hai)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang xa hoi. hieu van hoc tuc va ((danh hai) OR (lanh hai)) ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) ky nang xa hoi. hieu van hoc tuc va ((danh hai) OR (lanh hai)) ve triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ky nang xa hoi. hieu van hoc tuc va ((danh hai) OR (lanh hai)) ve triet*.