Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuat dung » thuat hung, thuat ung, thuat xung
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
ban thai » ban than, ban thi, ban tai
lang hai » lang chai, lang thai, lang ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh trinh ((thuat dung) or (cua nhung)) cong ((ban thai) or (lang hai)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh ((thuat dung) OR (cua nhung)) cong ((ban thai) OR (lang hai)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh ((thuat dung) or (cua nhung)) cong ((ban thai) or (lang hai)) cao*.