Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, nhung don
hien sach » dien sach, kien sach, thien hach
hang cong » dang cong, hang nong, bang cong
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - ((hanh tranh) OR (hanh trinh)) cua ((nhung cong) or (hang cong)) tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - ((hanh tranh) OR (hanh trinh)) cua ((nhung cong) OR (hang cong)) tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - ((hanh tranh) OR (hanh trinh)) cua ((nhung cong) or (hang cong)) tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - ((hanh tranh) OR (hanh trinh)) cua ((nhung cong) or (hang cong)) tan toan ban*.