Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tong cong » trong cong, cong cong, dung cong
manh cua » doanh cua, ban cua
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (lieu tinh)) - hanh ((manh cua) or (dung cua)) tong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (lieu tinh)) - hanh ((manh cua) OR (dung cua)) tong cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((dieu hanh) or (lieu tinh)) - hanh ((manh cua) or (dung cua)) tong cong dan toan cao*.