Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
cua tong » cua cong, cua nong, cua song
cua dong » chua dong, cua cong, cua dang
song cao » cong cao, dong cao, song cau
chat cau » chat cam, chat cao, chat va
song ca » song cua, song cau, song xa

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 - hanh tranh ((cua tong) or (cua dong)) ((song cao) OR (song ca)) chat cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh tranh ((cua tong) OR (cua dong)) ((song cao) OR (song ca)) chat cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh tranh ((cua tong) or (cua dong)) ((song cao) OR (song ca)) chat cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh ((cua tong) or (cua dong)) ((song cao) OR (song ca)) chat cau*.