Perhaps you should try some spelling variations:
thanh than » thanh thanh, thanh thang, thanh toan
hieu van » hieu va, thien van, lieu va
than cua » nhan cua, thai cua, ban cua
van bac » van ban, van bao, van hac
vuc van » duc van, luc van, thuc van
xuc van » duc van, luc van, xuc ban
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ang xa » lang xa, mang xa, dang xay
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: su sach ty ((ang xa) or (mang may)) hoi. hieu van bac ((xuc van) OR (vuc van)) thanh than cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((ang xa) OR (mang may)) hoi. hieu van bac ((xuc van) OR (vuc van)) thanh than cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((ang xa) or (mang may)) hoi. hieu van bac ((xuc van) OR (vuc van)) thanh than cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((ang xa) or (mang may)) hoi. hieu van bac ((xuc van) OR (vuc van)) thanh than cua te*.