Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hanh doi » thanh doi, hanh noi, hang doi
su sach » so sach, vu sach
qua cam » qua cham, qua cac, qua ca
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
doi cua » dai cua, hoi cua
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land

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 lang) or (_ lang)) xa hoi. hieu qua cam luc van hanh doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y lang) OR (_ lang)) xa hoi. hieu qua cam luc van hanh doi cua triet*.