Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung tuong » nhung huong, nhung phuong, hung vuong
trung tham » trung tam, trung thanh, trung thang
tham nhung » thi nhung
tuong bang » cuong bang, muong bang, trong bang
hoc thieu » toc thieu, hoc hien
hoc hieu » hoc hien, doc hieu, hoc dieu
phan cau » phan dau, phan cac, phan tu
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) OR (hoc thieu)) manh - thanh trung tham nhung tuong bang ((phan cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) manh - thanh trung tham nhung tuong bang ((phan cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) OR (hoc thieu)) manh - thanh trung tham nhung tuong bang ((phan cau) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) OR (hoc thieu)) manh - thanh trung tham nhung tuong bang ((phan cau) or (toan cau))*.