Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
khanh lai » khanh luan, thanh lap, thanh loi
xa khanh » xa thanh, van khanh, dat khanh
cham tuc » nham thuc, pham thuc, tham thuc
hieu va » lieu va, hieu qua
lai cua » dai cua, hai cua, lai chau
so sach » so sanh, bo sach, co sach
hieu ve » hieu van
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((y nang) or (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cham tuc xa khanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((y nang) OR (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cham tuc xa khanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((y nang) or (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cham tuc xa khanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ((y nang) or (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cham tuc xa khanh lai cua triet*.