Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
tac toan » tam toan, hach toan, tich toan
tap toan » tap doan, tap quan, bai toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh trinh luan hung cong ((tac toan) OR (tap toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh trinh luan hung cong ((tac toan) OR (tap toan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh trinh luan hung cong ((tac toan) OR (tap toan)) cao*.