Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long doc cua snippets" » "long soc cua snippets", "chong doc cua snippets", "long doan cua snippets", "long hoc cua snippets", "long doi cua snippets", "long do 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: (((("long doc 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: (((("long doc cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long doc cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long doc cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.