Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoc chuyen » khong chuyen
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
dan thanh » dang thanh, danh thanh, ban thanh
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) or (hoc chuyen)) danh - thanh trung tuan thong cong dan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc chuyen)) danh - thanh trung tuan thong cong dan thanh lap.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc chuyen)) danh - thanh trung tuan thong cong dan thanh lap*.