Perhaps you should try some spelling variations:
chieu tinh » chau tinh, kieu tinh, che tinh
lieu tinh » diep tinh, bien tinh
hanh than » hanh han, hanh nhan, hanh phan
cua trong » cua truong, cua trung, qua trong
than cua » nhan cua, thai cua, ban cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ho ((((chieu tinh) OR (trieu tinh))) or (lieu tinh)) - hanh than cua trong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu tinh) OR (trieu tinh))) OR (lieu tinh)) - hanh than cua trong cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu tinh) OR (trieu tinh))) or (lieu tinh)) - hanh than cua trong cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu tinh) OR (trieu tinh))) or (lieu tinh)) - hanh than cua trong cong tac toan cao*.