Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lai » thanh hai, thanh lap, thanh loi
ban thanh » ban hanh, ban hang
cap nuoc » dat nuoc
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
cao hoc » co hoc, cho hoc, chat hoc
lai cua » dai cua, hai cua, lai chau
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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 ((y nang) OR (v nang)) cao hoc. hieu van ((chat xuc) or (cap nuoc)) ban thanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (v nang)) cao hoc. hieu van ((chat xuc) OR (cap nuoc)) ban thanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (v nang)) cao hoc. hieu van ((chat xuc) or (cap nuoc)) ban thanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) OR (v nang)) cao hoc. hieu van ((chat xuc) or (cap nuoc)) ban thanh lai cua triet*.