Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, phong chong, cong cong
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, cong cong, dung cong
doan phan » doanh phan, toan phan, dan 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 - hanh trinh luat ((((thong cong) OR (tong cong))) or (thong thong)) doan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh luat ((((thong cong) OR (tong cong))) OR (thong thong)) doan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh luat ((((thong cong) OR (tong cong))) or (thong thong)) doan phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh luat ((((thong cong) OR (tong cong))) or (thong thong)) doan phan tu*.