Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dong cong » duong cong, dung cong, dang cong
bang hang » ban hang, hang hang, cang thang
nang hang » nang sang, hang hang, cang thang
cot lieu » co lieu, vat lieu, so lieu
tinh cua » trinh cua, sinh cua, tinh chat
cua dong » chua dong, cua cong, cua dang

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 tinh cua dong cong ((bang hang) or (nang hang)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cot lieu tinh - hanh tinh cua dong cong ((bang hang) OR (nang hang)) cap.
• Adding a wildcard symbol may retrieve word variants: cot lieu tinh - hanh tinh cua dong cong ((bang hang) or (nang hang)) cap*.