Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
dang cong » dung cong
doi lieu » duoc lieu, doi chieu, du lieu
trinh va » trinh van, trinh vat, trinh ve
ran cau » van cau, ban cau, can cau
van dau » van dao, phan dau

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 va ((thanh cong) or (dang cong)) tan ((ran cau) or (van dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - hanh trinh va ((thanh cong) OR (dang cong)) tan ((ran cau) OR (van dau)).
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - hanh trinh va ((thanh cong) or (dang cong)) tan ((ran cau) or (van dau))*.