Perhaps you should try some spelling variations:
chua triet » cua triet, chua thiet, chua trieu
ban thanh » ban hang
ban hanh » ban hang
va chua » vua chua, ca chua, va chu
su sach » so sach, vu sach
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
ve cam » ve cham, ve cac, va cam

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 ((y nang) or (ly nang)) xa hoi. hieu ve cam tuc ((ban thanh) OR (ban hanh)) va chua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ly nang)) xa hoi. hieu ve cam tuc ((ban thanh) OR (ban hanh)) va chua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) or (ly nang)) xa hoi. hieu ve cam tuc ((ban thanh) OR (ban hanh)) va chua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (ly nang)) xa hoi. hieu ve cam tuc ((ban thanh) OR (ban hanh)) va chua triet*.