Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
trinh san » trinh han, trinh quan, trinh toan
dung cong » dung trong
trinh su » trinh tu, trinh cau, trinh cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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 ((trinh su) OR (trinh san)) dung cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ((trinh su) OR (trinh san)) dung cong dan toan cau*".