Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
thu sach » thuoc sach, thu hoach, khau sach
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
cac tuc » cac toc, cac tu, cac tac
dau vai » dau va, dau hai, dau tai
vai cua » dai cua, hai cua, lai cua
xa dau » va dau, xa dai, ga 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) OR (thuat sach)))) ky nang xa hoi. lieu va cac tuc xa dau vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((thu sach) OR (thuat sach)))) ky nang xa hoi. lieu va cac tuc xa dau vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (((thu sach) OR (thuat sach)))) ky nang xa hoi. lieu va cac tuc xa dau vai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((thu sach) OR (thuat sach)))) ky nang xa hoi. lieu va cac tuc xa dau vai cua triet*.