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
tranh cua » doanh cua, manh cua
tong song » tong cong, dong song, tong son
song song » song hong, song dong, xuong song
chat cau » chat cam, chat cao, chat va

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 song) OR (song song)) cao chat cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh tranh cua ((tong song) OR (song song)) cao chat cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh cua ((tong song) OR (song song)) cao chat cau*.