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