Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
hach toan » thanh toan, manh toan
thang va » hang va, trang va, thong va
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 tieu xanh - nhanh thang va nhung cong ((tac toan) or (hach toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - nhanh thang va nhung cong ((tac toan) OR (hach toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - nhanh thang va nhung cong ((tac toan) or (hach toan)) cau*.