Perhaps you should try some spelling variations:
nhung cuong » nhung cong, hung cuong, nhung chong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cuong tap » luong tap, cong tac, luong tai
trang va » tran van, hang va
tap toan » tap doan, tap quan, bai toan
toan ban » van ban
tang va » tang van, thang va, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh ((tang va) OR (trang va)) nhung cuong tap toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ((tang va) OR (trang va)) nhung cuong tap toan ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((tang va) OR (trang va)) nhung cuong tap toan ban*.