Perhaps you should try some spelling variations:
thanh co » thanh do, thanh ca, thanh ho
vu sach » vu bach, su sach, vu khach
ty lang » tay lang, ty hang, tu lang
hieu ve » hieu va, hieu van
ve cuoc » va cuoc, ve duoc, ve nuoc
luc va » tuc va, loc va
co cua » con cua, ca cua, cong cua
cua te » cua tu

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: vu sach ((ty lang) OR (ty xang)) xa hoi. hieu ve cuoc ((luc va) OR (duc va)) thanh co cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty lang) or (ty xang)) xa hoi. hieu ve cuoc ((luc va) OR (duc va)) thanh co cua te~".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty lang) or (ty xang)) xa hoi. hieu ve cuoc ((luc va) OR (duc va)) thanh co cua te*.