Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
lang thanh » dang thanh, lang thang, nang thanh
tang thanh » dang thanh, trung thanh, hoang thanh
hoc thieu » toc thieu, hoc hien
van nhung » van nhuong, va nhung, van hung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - ((canh trinh) OR (hanh trinh)) van nhung cong ((lang thanh) or (tang thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((canh trinh) OR (hanh trinh)) van nhung cong ((lang thanh) OR (tang thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((canh trinh) OR (hanh trinh)) van nhung cong ((lang thanh) or (tang thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh trinh) OR (hanh trinh)) van nhung cong ((lang thanh) or (tang thanh)) cao*.