Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luan chung » luan chinh
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
cong tinh » cong trinh, cong vinh, long tinh
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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 lang - hanh trinh ((luan chung) or (cua nhung)) cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh trinh ((luan chung) OR (cua nhung)) cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh trinh ((luan chung) or (cua nhung)) cong tinh toan ban*.