Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hieu nganh » vien nganh, hiem ngan, hieu manh
trong song » trong cong, trong nong, trong dong
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
song van » hoang van, trong van, duong van
chat cac » chat cam, chat cao, cua cac

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) or (hieu nganh)) - canh tranh cua trong song van ((chat cac) or (cho cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu nganh)) - canh tranh cua trong song van ((chat cac) OR (cho cac)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu nganh)) - canh tranh cua trong song van ((chat cac) or (cho cac))*.