Perhaps you should try some spelling variations:
quang truong » quang trung, tang truong, duong truong
quang thong » quang phuong, quang trung, quan trong
hanh trinh » canh tranh, hanh chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh mang) or (hanh trinh)) ((quang thong) OR (quang truong)) cong tan tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh mang) OR (hanh trinh)) ((quang thong) OR (quang truong)) cong tan tran chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh mang) or (hanh trinh)) ((quang thong) OR (quang truong)) cong tan tran chau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh mang) or (hanh trinh)) ((quang thong) OR (quang truong)) cong tan tran chau*.