Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
tuong thong » thong thong, tong thong, tuong tuong
hanh trong » hanh trang, anh trong, hinh trong
hoat tuong » hoai thuong, hoang tuong, thuat tuong
hien xanh » hien hanh, hien nhanh, chieu xanh
thong dan » thong van, tuong dan, thong den
dan toan » van toan, dan than, manh toan
toan ban » van 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) or (thien thanh)) - hanh trong hoat tuong thong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (thien thanh)) - hanh trong hoat tuong thong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (thien thanh)) - hanh trong hoat tuong thong dan toan ban*.