Perhaps you should try some spelling variations:
thong duong » tuong duong, thong dung, thong huong
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tinh » hanh tinh, manh tinh, canh tranh
duong dan » duong dang, huong dan, duong van
vi thong » va thong, li thong, vi hong
phan cau » phan dau, phan cac, phan lap
tinh vi » trinh vi, tinh voi, tinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chinh sach)) - canh tinh vi thong duong dan ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chinh sach)) - canh tinh vi thong duong dan ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chinh sach)) - canh tinh vi thong duong dan ((phan cau) or (phan tu))*.