Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau tren » cu tren, dau tren, ca tren
tru nang » tri nang, truc nano, thi nang
tra nang » thi nang, kha nang, da nang
hanh lai » hanh lam, hanh tai, thanh lap
ban hanh » ban hang
tuc ban » thuc ban, truc ban, tu ban
so sach » so sanh, bo sach, co sach
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
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: so sach ((tru nang) OR (tra nang)) ma hoi. hieu ve cam tuc ban hanh lai ((cua triet) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((tru nang) OR (tra nang)) ma hoi. hieu ve cam tuc ban hanh lai ((cua triet) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((tru nang) OR (tra nang)) ma hoi. hieu ve cam tuc ban hanh lai ((cua triet) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: so sach ((tru nang) OR (tra nang)) ma hoi. hieu ve cam tuc ban hanh lai ((cua triet) or (cau tren))*.