Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
doi lieu » duoc lieu, doi chieu, du lieu
dan toan » van toan, dan than, manh 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: doi lieu tinh - hanh trinh luat ((cong cong) OR (dung cong)) dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi lieu tinh - hanh trinh luat ((cong cong) OR (dung cong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - hanh trinh luat ((cong cong) OR (dung cong)) dan toan cao*.