Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
lanh tranh » canh tranh, lan tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
san phan » san pham, van phan, dan phan
sat phan » sat nhan, vat phan, xuat phan

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 - ((cach mang) or (lanh tranh)) cua thong cong ((san phan) or (sat phan)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((cach mang) OR (lanh tranh)) cua thong cong ((san phan) OR (sat phan)) lap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((cach mang) or (lanh tranh)) cua thong cong ((san phan) or (sat phan)) lap*.