Perhaps you should try some spelling variations:
doan cap » doanh cao, dan ca, toan cao
tu sach » thu sach, su sach, te sach
cap cua » cap cuu, ca cua, tap cua
va doan » va doanh, van doan, va dan
tu cham » toc cham, thi cham
va cham » va chat, va tham
lang ha » long ha
lang xa » dang xay, lang van
luc va » duc va, tuc va, loc va
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((lang xa) OR (lang ha)) hoi. hieu ((va cham) or (tu cham)) luc va doan cap cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((lang xa) OR (lang ha)) hoi. hieu ((va cham) OR (tu cham)) luc va doan cap cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((lang xa) OR (lang ha)) hoi. hieu ((va cham) or (tu cham)) luc va doan cap cua te*".