Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham duc dan slippers" » "pham duc dan slippers", "tham du dan slippers", "than duc dan slippers", "tham duoc dan slippers", "tham duc tan slippers", "tham duc dai slippers", "tham duc dan slippery", "tham duc dan grippers"
"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: (((("tham duc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham duc dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham duc dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham duc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.