Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tay lang » tai lang, tay tang, tay quang
hang vi » hang va, hang di, khang voi
tuc ban » thuc ban, truc ban, tu ban
cam tuc » cam xuc, cam tu, nam thuc
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
o lang » hoa lang, hoi lang
va cam » va cham, va cac, va cao

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 ((tay lang) or (o lang)) xa hoi. hieu va cam tuc ban ((hang vi) or (hanh vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((tay lang) OR (o lang)) xa hoi. hieu va cam tuc ban ((hang vi) OR (hanh vi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((tay lang) or (o lang)) xa hoi. hieu va cam tuc ban ((hang vi) or (hanh vi)) cua triet*.