Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
22 lang » 22 thang
hieu va » lieu va, hieu qua
cac luc » cau luc, coc luc, cac nuoc
luc van » luoc van, luu van, duc van
lai cua » dai cua, hai cua, lai chau
2 lang » o lang, _ lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((2 lang) OR (22 lang)) xa hoi. hieu va cac luc van hanh lai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((2 lang) OR (22 lang)) xa hoi. hieu va cac luc van hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ((2 lang) OR (22 lang)) xa hoi. hieu va cac luc van hanh lai cua triet*.