Perhaps you should try some spelling variations:
ngang tuan » hoang tuan, nganh toan, trang tuan
quang tuan » quang thanh, quan luan, quang cua
hieu xanh » chieu xanh, hieu manh, hieu nganh
tong cong » trong cong, cong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
hang he » bang he, hang ke, hang ve
hang ha » hang hoa, hang hai, hoang ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - hanh ((hang he) or (hang ha)) tong cong ((ngang tuan) OR (quang tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh ((hang he) OR (hang ha)) tong cong ((ngang tuan) OR (quang tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh ((hang he) or (hang ha)) tong cong ((ngang tuan) OR (quang tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh ((hang he) or (hang ha)) tong cong ((ngang tuan) OR (quang tuan)) cau*.