Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
cua truong » cua trung, xuan truong, cac truong
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
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 cong tac ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu lang - canh tranh cua truong cong tac ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - canh tranh cua truong cong tac ((toan tai) or (toan ban))*.