Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
cong luong » cong thuong, nang luong, cong dong
luong toan » luong thanh, truong toan, luong tai
trinh cua » trinh luat, trinh quan, trinh luan
tinh cua » sinh cua, tinh chat, tranh cua
toan cao » toan ban, toan tap

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 cua) OR (tinh cua)) nhung cong luong toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((trinh cua) OR (tinh cua)) nhung cong luong toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((trinh cua) OR (tinh cua)) nhung cong luong toan cao*.