Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh tai » thanh tai, hang tai, han tai
hieu van » hieu va, thien van, lieu va
cau tuc » cau truc, cau tu, cau luc
xa hanh » xa thanh, xa khanh, va hanh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
mang xa » lang xa, mang may, dang xay
van cau » van dau, van hau, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((mang xa) or (nang x)) hoi. hieu van cau tuc xa hanh tai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((mang xa) OR (nang x)) hoi. hieu van cau tuc xa hanh tai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((mang xa) or (nang x)) hoi. hieu van cau tuc xa hanh tai ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((mang xa) or (nang x)) hoi. hieu van cau tuc xa hanh tai ((cua triet) OR (su triet))*.