Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
cong tam » cong tac, cong tan, cong nam
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 tieu tinh - hanh ((tang cua) or (tang luan)) nhung cong tam ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh ((tang cua) OR (tang luan)) nhung cong tam ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - hanh ((tang cua) or (tang luan)) nhung cong tam ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh ((tang cua) or (tang luan)) nhung cong tam ((toan cau) OR (toan ban))*.