Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
chieu sach » chiet tach, chieu sang, chieu xanh
hanh nhung » anh nhung, canh nhung, doanh nhung
nhung cao » nhung cau, nung cao, nhung ca
dung cong » dung trong
cao dung » cao dang, cao dong, cao ung
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien hach) or (((chieu sach) OR (chinh sach)))) - hanh nhung cao dung cong san phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien hach) OR (((chieu sach) OR (chinh sach)))) - hanh nhung cao dung cong san phan cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien hach) or (((chieu sach) OR (chinh sach)))) - hanh nhung cao dung cong san phan cac*".