Perhaps you should try some spelling variations:
chau triet » cua triet, cau trieu, chau tuyet
nhanh thuc » nhan thuc, thanh thuy, anh thuc
cau triet » cau trieu, su triet, cua triet
hanh lai » hanh lam, hanh tai, thanh lap
vu nhanh » vu khanh, vu thanh, vu hanh
hieu vu » hieu va, hieu ve, hieu su
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
nang xa » lang xa, nang ma, mang xa
su sach » so sach, vu sach

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 xa) OR (nang x)) hoi. hieu vu nhanh thuc va hanh lai ((chau triet) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (nang x)) hoi. hieu vu nhanh thuc va hanh lai ((chau triet) OR (cau triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang xa) OR (nang x)) hoi. hieu vu nhanh thuc va hanh lai ((chau triet) or (cau triet))".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) OR (nang x)) hoi. hieu vu nhanh thuc va hanh lai ((chau triet) or (cau triet))*.