Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » thong cong, hang cong, nhung don
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh 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: ho ((hieu manh) or (chau tinh)) - hanh trinh vat ((nhung cong) OR (dung cong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chau tinh)) - hanh trinh vat ((nhung cong) OR (dung cong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chau tinh)) - hanh trinh vat ((nhung cong) OR (dung cong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chau tinh)) - hanh trinh vat ((nhung cong) OR (dung cong)) manh toan ban*.