Perhaps you should try some spelling variations:
luan hang » luan nang, luan han, luan hung
chua tinh » cua tinh, thuat tinh, chua benh
hang cong » dang cong, hang nong, bang cong
cha tinh » chau tinh, cham tinh, chai tinh
anh dung » anh dong, anh huong, sach dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((chua tinh) or (cha tinh)) - anh dung luan hang cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chua tinh) OR (cha tinh)) - anh dung luan hang cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chua tinh) or (cha tinh)) - anh dung luan hang cong tan toan ban*.