Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua nhung » va nhung
trinh do » trinh ky
do hai » do thai, doc hai, do dai

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 - canh doanh cua nhung cong trinh do hai~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh doanh cua nhung cong trinh do hai*.