Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
chat xuc » chat huu, cam xuc, chao xu
sach ty » sach y, sach tu, sach thu
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ve chat » va chat, van chat
ma hoi » mai hoi, xa hoi, me hoi
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: tu sach ty nang ((ma hoi) or (ma hoa)). hieu ve chat xuc ((van hanh) or (van thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((ma hoi) OR (ma hoa)). hieu ve chat xuc ((van hanh) OR (van thanh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((ma hoi) or (ma hoa)). hieu ve chat xuc ((van hanh) or (van thanh)) vi cua triet*.