Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
nang mai » nang ma, nang tai, lang mai
sach ty » sach tu, sach thu, xach tay
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
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: tu ((sach ty) OR (sach y)) nang mai 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: tu ((sach ty) OR (sach y)) nang mai hoi. hieu ve cac xuc ((va hanh) OR (ban thanh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) nang mai hoi. hieu ve cac xuc ((va hanh) or (ban thanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) nang mai hoi. hieu ve cac xuc ((va hanh) or (ban thanh)) vi cua triet*.