Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan quan ho snippets" » "van quan ho snippets", "ban quan ho snippets", "dan quan ho snippets", "lan quan he snippets", "lan quan ha snippets", "lan quan so 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: (((("lan quan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan quan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan quan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan quan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.