Perhaps you should try some spelling variations:
thanh le » thinh le, thanh ve, thanh de
dang van » hoang van, hang va
tang van » hoang van, trong van, tang luan
truc ban » thuc ban, truc dan, truc van
su sach » so sach, vu sach
tuc ban » thuc ban, tu ban, tuc dan
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((dang van) or (tang van)) hoi. hieu ve cham ((tuc ban) OR (truc ban)) thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((dang van) OR (tang van)) hoi. hieu ve cham ((tuc ban) OR (truc ban)) thanh le cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((dang van) or (tang van)) hoi. hieu ve cham ((tuc ban) OR (truc ban)) thanh le cua vat".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((dang van) or (tang van)) hoi. hieu ve cham ((tuc ban) OR (truc ban)) thanh le cua vat*.