Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cuu ban » cuu van, cua ban, cuu san
nam cuu » nam cua, nam suu, nam cau
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
vu sach » vu bach, su sach, vu khach
anh vi » anh va, anh ve, anh vu
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: ((tu sach) OR (vu sach)) ty lang xa hoi. hieu van nam cuu ban ((anh vi) OR (hanh vi)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (vu sach)) ty lang xa hoi. hieu van nam cuu ban ((anh vi) OR (hanh vi)) cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ty lang xa hoi. hieu van nam cuu ban ((anh vi) OR (hanh vi)) cua te*.