Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham duc » pham duc, cham soc, pham duy
van hanh » van thanh, ban hanh, van anh
hanh hai » thanh hai, nhanh hai, hang hai
tu sach » thu sach, su sach, te sach
tu nang » tru nang, tu nong, tu nano
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
duc van » duc va, duc tan, duc manh
hai cua » thai cua, dai cua, hoi cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tu nang) or (truc nano)) xa hoi. hieu ve cham duc van hanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu nang) OR (truc nano)) xa hoi. hieu ve cham duc van hanh hai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu nang) or (truc nano)) xa hoi. hieu ve cham duc van hanh hai cua triet*.