Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hang » thanh hang, hang hang, hanh han
cua nhung » va nhung
hach toan » thanh toan, manh toan
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
hang cua » mang cua, hang ca, huong cua
tac toan » tap toan, tam toan, tich toan

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) OR (chu manh)) - hanh hang cua nhung cong ((tac toan) or (hach toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - hanh hang cua nhung cong ((tac toan) OR (hach toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chu manh)) - hanh hang cua nhung cong ((tac toan) or (hach toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chu manh)) - hanh hang cua nhung cong ((tac toan) or (hach toan)) cau*.