Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lon goc cua snippets" » "lon soc cua snippets", "loc ngoc cua snippets", "lon cuoc cua snippets", "lon hoc cua snippets", "lon doc cua snippets", "lon goc qua 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: (((("lon goc 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: (((("lon goc cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lon goc cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lon goc cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.