Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
va cam » va cham, va cao, va cai

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) or (toc sach)) ky nang xa hoi. lieu ((va cam) or (va cac)) duc va hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ky nang xa hoi. lieu ((va cam) OR (va cac)) duc va hanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ky nang xa hoi. lieu ((va cam) or (va cac)) duc va hanh tai cua triet*.