Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
van thanh » ban thanh, van tuan
khoan va » doan va, nhan va, han va
cong van » cong vang, cong san, song van
thanh tu » hanh tu, nhanh tu, thanh tung
toan va » doan va, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - doanh ((((khoan va) or (toan va))) or (khoa ma)) dung cong van thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - doanh ((((khoan va) OR (toan va))) OR (khoa ma)) dung cong van thanh tu.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - doanh ((((khoan va) or (toan va))) or (khoa ma)) dung cong van thanh tu*.