Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"theo chi dan snippets" » "theo chu dan snippets", "theo chieu dan snippets", "theo nghi dan snippets", "theo choi dan snippets", "theo chi van snippets", "theo thi dan snippets", "theo chi dan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("theo chi dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("theo chi dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo chi dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo chi dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.