Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
trinh ca » trinh cau, trinh cac, trinh cam
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

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 ca) OR (trinh cua)) dung cong tap doan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ((trinh ca) OR (trinh cua)) dung cong tap doan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((trinh ca) OR (trinh cua)) dung cong tap doan cau*.