Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung cong » truong cong, trong cong, trung uong
hoc thieu » toc thieu, hoc hien
thong tu » phong tuc, thong tin, thong ke
dong cua » dung cua, cong cua, huong cua
cong san » cong tac
pham tu » phan tu, pham thi, pham tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - thanh ((thong tu) or (dong cua)) trung cong san pham tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((thong tu) OR (dong cua)) trung cong san pham tu.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((thong tu) or (dong cua)) trung cong san pham tu*.