Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap khu cua snippets" » "lap khao cua snippets", "lap khoa cua snippets", "thap khu cua snippets", "lap hu cua snippets", "lap khi cua snippets", "lap kho cua 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 khu cua 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 khu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap khu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap khu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.