Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
nang chua » nang cua, nang dua, nang cham
nang thuc » dang thuoc, nhanh thuc, trang thuc
dung cong » dung trong
cong lang » cong vang, cong luong, cong quang
lang toan » dang toan, lang thang, lang thanh
toan cao » toan ban, toan tap

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 - anh ((nang chua) or (nang thuc)) dung cong lang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - anh ((nang chua) OR (nang thuc)) dung cong lang toan cao*.