Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
tang cua » mang cua, hang cua, tang luan
tan chan » dan chan, ban chan, tam chan
can chan » dan chan, cam chan, ban chan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh ((tang cua) or (tranh cua)) nhung cong ((tan chan) or (can chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((tang cua) OR (tranh cua)) nhung cong ((tan chan) OR (can chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((tang cua) or (tranh cua)) nhung cong ((tan chan) or (can chan)) cau*.