Perhaps you should try some spelling variations:
dua tren » dung tren
hanh lai » hanh lam, hanh tai, thanh lap
va hanh » van hanh, va thanh, va danh
xang xa » lang xa, mang xa, ang xa
cu tren » tu tren
te sach » toc sach
ve cam » ve cham, ve cac, va cam
y xang » ty xang
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: te sach y xang xa hoi. hieu ((ve cam) or (vien bach)) tuc va hanh lai ((cu tren) OR (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y xang xa hoi. hieu ((ve cam) OR (vien bach)) tuc va hanh lai ((cu tren) OR (dua tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y xang xa hoi. hieu ((ve cam) or (vien bach)) tuc va hanh lai ((cu tren) OR (dua tren))*".