Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu tach » hieu cach, chiet tach, chieu sach
tranh cua » doanh cua, manh cua
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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 tach - canh tranh cua nhung cong anh tuan cau~.
• Adding a wildcard symbol may retrieve word variants: doc hieu tach - canh tranh cua nhung cong anh tuan cau*.