Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
toan tai » doanh tai, toan ban, von tai
toan cao » toan ban
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 tranh cua nhung cong dan ((toan tai) or (((toan cao) OR (toan tap))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh tranh cua nhung cong dan ((toan tai) OR (((toan cao) OR (toan tap)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh cua nhung cong dan ((toan tai) or (((toan cao) OR (toan tap))))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua nhung cong dan ((toan tai) or (((toan cao) OR (toan tap))))*.