Perhaps you should try some spelling variations:
dua tren » dung tren
tu sach » thu sach, su sach, te sach
sach xu » sach xa, cach xu, mach xu
cuu tre » cua tre, cau tren, cau treo
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
xu lang » cu lang, tu lang, xu dang
tuc va » thuc va, truc va, duc va

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: tu sach xu lang xa hoi. hieu ve cham ((tuc va) OR (tuc xa)) hanh vi ((dua tren) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach xu lang xa hoi. hieu ve cham ((tuc va) OR (tuc xa)) hanh vi ((dua tren) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sach xu lang xa hoi. hieu ve cham ((tuc va) OR (tuc xa)) hanh vi ((dua tren) or (cuu tre))*.