Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » anh tang, hanh mang, hanh tung
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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 tang) or (((hanh trang) OR (canh tranh)))) luan dang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh tang) OR (((hanh trang) OR (canh tranh)))) luan dang cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh tang) or (((hanh trang) OR (canh tranh)))) luan dang cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh tang) or (((hanh trang) OR (canh tranh)))) luan dang cong tac toan cao*.