Perhaps you should try some spelling variations:
canh trang » canh tranh, hanh trang, banh trang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
ban trang » banh trang, ban trong, ban tran
ho chieu » theo chieu, doi chieu, mot chieu
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (hoc thieu)) tach - ((canh trang) or (ban trang)) va nhung cong sat phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tach - ((canh trang) OR (ban trang)) va nhung cong sat phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) tach - ((canh trang) or (ban trang)) va nhung cong sat phan tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) tach - ((canh trang) or (ban trang)) va nhung cong sat phan tu*.