Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
hanh trinh » canh tranh, hanh chinh
quan thong » quang thong, quan trong, xuan thong
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
cong van » cong vang, song van, cong tan
cong san » cong tac
toan tap » toan ban

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) OR (tieu danh)) - hanh trinh quan thong ((cong van) or (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - hanh trinh quan thong ((cong van) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (tieu danh)) - hanh trinh quan thong ((cong van) or (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (tieu danh)) - hanh trinh quan thong ((cong van) or (cong san)) toan tap*.