Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
ty nang » ky nang, ty xang, ty hang
mai hoi » mai khoi, dai hoi, lai hoi
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
vu sach » su sach, vu khach
tuc va » thuc va, truc va, tuc xa
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) OR (vu bach)) ty nang ((xa hoi) or (mai hoi)). thien van cam tuc va danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) ty nang ((xa hoi) OR (mai hoi)). thien van cam tuc va danh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) ty nang ((xa hoi) or (mai hoi)). thien van cam tuc va danh vi cua triet*".