Perhaps you should try some spelling variations:
trong tuan » trong quan, trung tuan, trong tan
tranh luan » trinh luan, trinh luat, doanh luan
dung huong » dung thuong, dung phuong, dong huong
hien xanh » hien hanh, hien nhanh, chieu xanh
ung huong » dung thuong, dung phuong, nhung huong
manh toan » thanh toan, anh tuan, tinh toan
toan tap » toan ban

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 ((trong tuan) or (tranh luan)) ((ung huong) OR (dung huong)) manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trong tuan) OR (tranh luan)) ((ung huong) OR (dung huong)) manh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh ((trong tuan) or (tranh luan)) ((ung huong) OR (dung huong)) manh toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trong tuan) or (tranh luan)) ((ung huong) OR (dung huong)) manh toan tap*.