Perhaps you should try some spelling variations:
qua tham » qua cham, qua than, qua thanh
tham tuc » tham thuc, thai tuc, nham thuc
chua tre » chua tri, cua tre, chua trieu
lang xa » lang ha, dang xay, lang van
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
va chua » vua chua, ca chua, va chu
sach o » sach lo, sach y, mach o
tuc va » thuc va, truc va, tuc xa

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 o) or (sac o)) lang xa hoi. hieu qua tham tuc va danh va chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach o) OR (sac o)) lang xa hoi. hieu qua tham tuc va danh va chua tre*.