Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
thanh tran » thanh trang, thanh toan, thanh tra
tuan nhung » quan nhung, thuat nhung, tranh nhung
phuong dan » phuong danh, phuong doan, huong dan
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tuan hung » tran hung, luan hung, tuan dung
dan thanh » dang thanh, danh thanh, ban thanh
thanh lap » thanh san, phan lap, thanh hai

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 tach - thanh tran ((tuan nhung) or (tuan hung)) phuong dan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - thanh tran ((tuan nhung) OR (tuan hung)) phuong dan thanh lap.
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - thanh tran ((tuan nhung) or (tuan hung)) phuong dan thanh lap*.