Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
cua thuong » cua truong, ca thuong, cua huong
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
doc hieu » toc thieu, hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
toan cao » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - nhanh tinh ((cua thuong) or (cua phuong)) cong tan ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu tinh - nhanh tinh ((cua thuong) OR (cua phuong)) cong tan ((toan tap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - nhanh tinh ((cua thuong) or (cua phuong)) cong tan ((toan tap) or (toan cao))*.