Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"von luat hoi snippets" » "von luan hoi snippets", "toan luat hoi snippets", "bo luat hoi snippets", "von luat moi snippets", "von luat so snippets", "von luat dai 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: (((("von luat hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("von luat hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( von luat hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("von luat hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.