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