Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
tuong tinh » truong tinh, thuong tinh, trong tinh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
toan cao » toan ban
toan tap » toan ban
ke tinh » ket tinh, ve tinh, he tinh
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thiet ke tinh - canh tranh van nhung tuong tinh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thiet ke tinh - canh tranh van nhung tuong tinh ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: thiet ke tinh - canh tranh van nhung tuong tinh ((toan cao) or (toan tap))*.