Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
dang mam » dang nam, dang mau, dang mat
su sach » so sach, vu sach
ve chat » va chat, van chat
luc bat » suc bat, luc nhat, luat bat
luc ban » duc ban, cuc ban, luc van
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
dang ma » dang mau, dang mat, tang ma
ve cua » le cua, de cua, te 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 ma) or (dang mam)) hoi. hieu ve chat ((luc ban) or (luc bat)) thanh ve cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((dang ma) OR (dang mam)) hoi. hieu ve chat ((luc ban) OR (luc bat)) thanh ve cua vat.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((dang ma) or (dang mam)) hoi. hieu ve chat ((luc ban) or (luc bat)) thanh ve cua vat*.