Perhaps you should try some spelling variations:
tuong cong » truong cong, trong cong, tong cong
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh hang » thanh hang, hang hang, hanh han
cot lieu » co lieu, vat lieu, so lieu
va tuong » va thuong, va thong, xa truong
cong san » cong tac
toan cau » toan cao, 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: cot lieu tinh - hanh hang va tuong cong san ((toan cau) or (((toan tap) OR (toan ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cot lieu tinh - hanh hang va tuong cong san ((toan cau) OR (((toan tap) OR (toan ban)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cot lieu tinh - hanh hang va tuong cong san ((toan cau) or (((toan tap) OR (toan ban))))".
• Adding a wildcard symbol may retrieve word variants: cot lieu tinh - hanh hang va tuong cong san ((toan cau) or (((toan tap) OR (toan ban))))*.