Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
khanh hai » thanh hai, nhanh hai, nhanh thai
xa khanh » xa thanh, van khanh, dat khanh
hieu va » lieu va, hieu qua
hai cua » thai cua, dai cua, hoi cua
cam tuc » cam xuc, cam tu, nam thuc
su sach » so sach, vu 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: su sach ((y nang) or (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cam tuc xa khanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cam tuc xa khanh hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) or (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cam tuc xa khanh hai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (ly nang)) ma hoa. ((hieu ve) OR (hieu va)) cam tuc xa khanh hai cua triet*.