Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
cham tuc » nham thuc, pham thuc, tham thuc
cau tren » dau tren, ca tren, cau treo
nang xa » lang xa, nang ma, mang xa
xa hanh » xa thanh, xa khanh, va hanh
hanh ve » hanh vi, hanh va, hanh kem
cu tren » tu tren, dua tren
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((nang xa) or (nang x)) hoi. hieu qua cham tuc xa hanh ve ((cu tren) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((nang xa) OR (nang x)) hoi. hieu qua cham tuc xa hanh ve ((cu tren) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu san ky ((nang xa) or (nang x)) hoi. hieu qua cham tuc xa hanh ve ((cu tren) or (cau tren))*.