Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap tre can snippets" » "lap tren can snippets", "lap tieu can snippets", "lap trat can snippets", "lap tre dan snippets", "lap tiep can snippets", "lap tiem can snippets"
"locating bug code snippets" » "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: (((("lap tre can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap tre can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap tre can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap tre can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.