Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
doanh cao » doanh co, doanh bao, doanh cho
cua tong » cua cong, cua dong, cua song
cua nong » cua cong, cuu nong, cua dong
cong tap » cuong tap, cong tac, cong tan
doan cau » toan cau, doan dau, doan cap

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 - hanh tinh ((cua tong) or (cua nong)) cong tap ((doan cau) or (doanh cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh tinh ((cua tong) OR (cua nong)) cong tap ((doan cau) OR (doanh cao)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh tinh ((cua tong) or (cua nong)) cong tap ((doan cau) or (doanh cao))*.