Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
ngang tuan » quang tuan, hoang tuan, nganh toan
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 hoa » hang khoa, thanh hoa, hang va
tuan cau » toan cau, quan cau, tuan cu
hang he » hang ha, bang he, hang ke

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 hoa)) tong cong ngang tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh ((hang he) OR (hang hoa)) tong cong ngang tuan cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh ((hang he) or (hang hoa)) tong cong ngang tuan cau*.