Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, nham thu
dang dinh » dang sinh, dang dieu, dang hanh
dang tinh » dang sinh, dang vinh, dang thanh
ve nham » ve nha, ve cham
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
vi cua » vai cua, di cua
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve nham thuc ((dang tinh) or (dang dinh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve nham thuc ((dang tinh) OR (dang dinh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve nham thuc ((dang tinh) or (dang dinh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve nham thuc ((dang tinh) or (dang dinh)) vi cua triet*.