Perhaps you should try some spelling variations:
truong cao » truong dai
nhung cong » thong cong, hang cong, nhung don
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
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 - hanh ((trung cua) or (truong cao)) ((nhung cong) or (dung cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trung cua) OR (truong cao)) ((nhung cong) OR (dung cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trung cua) or (truong cao)) ((nhung cong) or (dung cong)) dan toan ban*.