Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
cua khong » hua khong, cua phuong, cua thuong
tan toan » tan tran, van toan, dan toan
tap toan » tap doan, tap quan, bai toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo lieu tinh - ((hanh mang) or (canh tranh)) cua khong cong ((tan toan) OR (tap toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo lieu tinh - ((hanh mang) OR (canh tranh)) cua khong cong ((tan toan) OR (tap toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo lieu tinh - ((hanh mang) or (canh tranh)) cua khong cong ((tan toan) OR (tap toan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo lieu tinh - ((hanh mang) or (canh tranh)) cua khong cong ((tan toan) OR (tap toan)) cao*.