Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong dan » phuong danh, phuong doan, huong dan
thanh thi » nhanh thi, thanh tri, thanh thu
thanh tai » thanh hai, thanh toan, doanh tai
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
ho lieu » so lieu, co lieu, ho chieu
ho kieu » so kieu, thi kieu, ho chieu

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 (ho kieu)) tinh - thanh trung ((thanh thi) or (thanh tai)) phuong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (ho kieu)) tinh - thanh trung ((thanh thi) OR (thanh tai)) phuong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) OR (ho kieu)) tinh - thanh trung ((thanh thi) or (thanh tai)) phuong dan than cau".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) OR (ho kieu)) tinh - thanh trung ((thanh thi) or (thanh tai)) phuong dan than cau*.