Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » ban thanh, va tinh, le thanh
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
cac luc » cau luc, coc luc, cac nuoc
so sanh » do sanh
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa
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: ((su sach) or (so sanh)) ty nang ma hoi. lieu va cac luc ((va thanh) OR (gia thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ty nang ma hoi. lieu va cac luc ((va thanh) OR (gia thanh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) ty nang ma hoi. lieu va cac luc ((va thanh) OR (gia thanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) ty nang ma hoi. lieu va cac luc ((va thanh) OR (gia thanh)) vi cua triet*.