Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
cua triet » cua viet, su triet, va triet
hanh vai » hanh vi, hanh va, hanh tai
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
cao suc » cao su, cao duc
vai cua » dai cua, hai cua, lai cua
ve cao » va cao, ve bao, ve cac

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 ((ty xang) or (ky nang)) xa hoi. hieu ve cao suc manh hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty xang) OR (ky nang)) xa hoi. hieu ve cao suc manh hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ty xang) or (ky nang)) xa hoi. hieu ve cao suc manh hanh vai cua triet*.