Perhaps you should try some spelling variations:
ngan hanh » ngan thanh, ngan hang, ngan danh
cau tren » dau tren, ca tren, cau treo
chau phu » chau phi, chau au, chau tho
cau phuc » cau truc, huu phuc, van phuc
te sach » toc sach
sach ty » sach y, sach tu, sach thu
cu tren » tu tren, dua tren
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty lang xa hoi. hieu ve ((cau phuc) OR (chau phu)) ngan hanh vi ((cau tren) OR (cu tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty lang xa hoi. hieu ve ((cau phuc) OR (chau phu)) ngan hanh vi ((cau tren) or (cu tren))~".
• Adding a wildcard symbol may retrieve word variants: te sach ty lang xa hoi. hieu ve ((cau phuc) OR (chau phu)) ngan hanh vi ((cau tren) or (cu tren))*.