Perhaps you should try some spelling variations:
sach kho » bach khoa, sach dao, sach nha
kho tang » cao tang
gian lan » gian lang, gian dan, giang van
te sach » toc sach
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
ve cac » va cac, vien cac
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach kho tang xa hoi. hieu ve cac duc va ((gianh lai) or (gian lan)) ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach kho tang xa hoi. hieu ve cac duc va ((gianh lai) OR (gian lan)) ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach kho tang xa hoi. hieu ve cac duc va ((gianh lai) or (gian lan)) ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: te sach kho tang xa hoi. hieu ve cac duc va ((gianh lai) or (gian lan)) ((cua te) OR (cua tu))*.