Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vu sach » vu bach, su sach, vu khach
ly nang » ky nang, ly vang, ly quang
ly hang » ly quang
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((ly nang) OR (ly hang)) xa hoi. hieu ve cam ((xuc va) or (tuc xa)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ly nang) OR (ly hang)) xa hoi. hieu ve cam ((xuc va) OR (tuc xa)) hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ly nang) OR (ly hang)) xa hoi. hieu ve cam ((xuc va) or (tuc xa)) hanh vi cua triet*".