Perhaps you should try some spelling variations:
thong huong » thong thuong, thong duong, thong thong
huong doan » phuong doan, huong dan, huong loan
cot lieu » co lieu, vat lieu, so lieu
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
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) or (cot lieu)) tinh - canh tranh va thong huong doan ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (cot lieu)) tinh - canh tranh va thong huong doan ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (cot lieu)) tinh - canh tranh va thong huong doan ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (cot lieu)) tinh - canh tranh va thong huong doan ((phan cau) OR (phan cac))*.