Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
nang cay » nang cao, nang cap, nang cai
cay phoi » cap phoi, tay hoi, cay cho
cac tac » cac toc, cac bac, cac dac
vai cua » dai cua, hai cua, lai cua
dan vai » dan va, dan tai, dan vat
tu sach » su sach, te sach, tu cach
cac tuc » cac toc, cac tu, cac nuoc
va dan » ca dan, va dao, va dau

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 (thu sach)) ky nang cay phoi. lieu va ((cac tuc) OR (cac tac)) va dan vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang cay phoi. lieu va ((cac tuc) OR (cac tac)) va dan vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang cay phoi. lieu va ((cac tuc) OR (cac tac)) va dan vai cua triet*".