Perhaps you should try some spelling variations:
nhung trong » hung trong, nhung tuong, thuong trong
vien nganh » vien thanh
trong vinh » trong kinh, trong sinh, trong linh
hieu manh » chieu xanh, hieu nganh, dieu hanh
vinh toan » tinh toan, hinh toan, minh toan
tang van » dang van, hoang van, trong van
toan ban » van ban
tang va » trang va, 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: hoc ((hieu manh) or (vien nganh)) - hanh ((tang va) or (tang van)) nhung trong vinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (vien nganh)) - hanh ((tang va) OR (tang van)) nhung trong vinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (vien nganh)) - hanh ((tang va) or (tang van)) nhung trong vinh toan ban*.