Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bao hoc dan slippers" » "bai hoc dan slippers", "bao goc dan slippers", "bac hoc dan slippers", "bao hoc dan slippery", "bao hoc 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: (((("bao hoc 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: (((("bao hoc dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bao hoc dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bao hoc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.