Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
cua truong » cua trung, xuan truong, cac truong
trinh toan » tinh toan, thanh toan, trinh han
tranh cua » doanh cua, manh cua
cha tinh » chau tinh, cham tinh, chai tinh
toan ban » van ban
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((cha tinh) or (ha tinh)) - canh tranh cua truong cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((cha tinh) OR (ha tinh)) - canh tranh cua truong cong trinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((cha tinh) or (ha tinh)) - canh tranh cua truong cong trinh toan ban*.