Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
cac xuc » cac nuoc, chat xuc, cac cuoc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
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 thi nang ma hoi. hieu ve ((cac xuc) OR (cam xuc)) ((va hanh) or (ban thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi nang ma hoi. hieu ve ((cac xuc) OR (cam xuc)) ((va hanh) OR (ban thanh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thi nang ma hoi. hieu ve ((cac xuc) OR (cam xuc)) ((va hanh) or (ban thanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach thi nang ma hoi. hieu ve ((cac xuc) OR (cam xuc)) ((va hanh) or (ban thanh)) vi cua triet*.