Perhaps you should try some spelling variations:
cua truong » xuan truong, cac truong, xa truong
hieu lang » chieu sang, hieu quang, nhieu tang
cua trung » xuan trung, cua nhung, ba trung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tac » cong ty
toan tai » toan tap, doanh tai, toan cao
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 hieu lang - canh tranh ((cua truong) OR (cua trung)) cong tac ((toan tai) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu lang - canh tranh ((cua truong) OR (cua trung)) cong tac ((toan tai) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - canh tranh ((cua truong) OR (cua trung)) cong tac ((toan tai) OR (toan ban))*.