Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh tam » trinh tam, thanh tam, tranh lam
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
tam dung » tam duong, tac dung, tan dung
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 (lieu tinh)) - canh tranh tam dung cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (lieu tinh)) - canh tranh tam dung cong tinh toan ban*.