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