Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
sach thu » sach thue, sach thieu, sach tham
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
ve cac » va cac, vien cac

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 thu ((nang ma) or (nang x)) hoi. hieu ve cac xuc ((va hanh) or (ban thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((nang ma) OR (nang x)) hoi. hieu ve cac xuc ((va hanh) OR (ban thanh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach thu ((nang ma) or (nang x)) hoi. hieu ve cac xuc ((va hanh) or (ban thanh)) vi cua triet*.