Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hang hang » nang hang, cang thang, hung thang
cong cong » cong dong, trong cong, dung cong
ho chieu » hoc thieu, doi chieu, mot chieu
hang cua » mang cua, hang ca, huong cua
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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) or (ho chieu)) tinh - hang hang cua cong cong trinh ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) tinh - hang hang cua cong cong trinh ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) tinh - hang hang cua cong cong trinh ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) tinh - hang hang cua cong cong trinh ((toan cau) OR (toan ban))*.