Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu muc doc snippets" » "thu tuc doc snippets", "thu duc doc snippets", "thu quoc doc snippets", "thu muc do snippets", "thu muc dich 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: (((("thu muc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu muc doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu muc doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu muc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.