Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va danh » va dinh, va dan, va hanh
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) or (thu hoach)) ky dang xa hoi. hieu ve cham xuc ((va danh) or (van hanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ky dang xa hoi. hieu ve cham xuc ((va danh) OR (van hanh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ky dang xa hoi. hieu ve cham xuc ((va danh) or (van hanh)) vi cua triet*.