Perhaps you should try some spelling variations:
thong dong » thong duong, thuong dong, thong dung
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
doanh cao » doanh co, doanh bao, doanh cho
tinh cua » trinh cua, sinh cua, tinh chat
co doanh » cho doanh, cao doanh, so doanh
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh ((trinh luat) or (tinh cua)) ((thong dong) OR (thong cong)) co doanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trinh luat) OR (tinh cua)) ((thong dong) OR (thong cong)) co doanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh ((trinh luat) or (tinh cua)) ((thong dong) OR (thong cong)) co doanh cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trinh luat) or (tinh cua)) ((thong dong) OR (thong cong)) co doanh cao*.