Perhaps you should try some spelling variations:
tieu danh » dieu danh, tiep danh, thien danh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
cong tang » cong thang, cong tan, cong lang
tinh cua » trinh cua, sinh cua, tinh chat
cua dung » cua dang, cua dong, qua dung
tang tan » tang van, tang tai, tang dan
tan cau » toan cau, van cau, tan ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (tieu danh)) - hanh tinh cua dung cong tang tan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (tieu danh)) - hanh tinh cua dung cong tang tan cau*.