Perhaps you should try some spelling variations:
cau theo » cau thi, cau tao
cau treo » cau tren, cau triet, cau trieu
bai dien » mai dien, bi dien, hai diem
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
van chat » cao chat
lang ha » long ha
sach ty » sach y, sach tu, sach thu
xuc van » duc van, luc van, vuc van
van bai » van ban, van bao, van hai
nang xa » nang x, lang xa, nang ma
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 ty ((nang xa) or (lang ha)) hoi. hieu van chat xuc van bai dien ((cau treo) OR (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang xa) OR (lang ha)) hoi. hieu van chat xuc van bai dien ((cau treo) OR (cau theo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang xa) or (lang ha)) hoi. hieu van chat xuc van bai dien ((cau treo) OR (cau theo))".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang xa) or (lang ha)) hoi. hieu van chat xuc van bai dien ((cau treo) OR (cau theo))*.