Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trinh cua » trinh luat, trinh quan, trinh luan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tinh cua » sinh cua, tinh chat, tranh cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh ((tinh cua) OR (trinh cua)) nhung cong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh ((tinh cua) OR (trinh cua)) nhung cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((tinh cua) OR (trinh cua)) nhung cong tac toan ban*.