Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
cua thong » cua thuong, cua khong, cua tong
thong tan » thong than, thong tran, thong tin
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
ho lieu » so lieu, co lieu, ho kieu

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

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