Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap trat dan slippers" » "lap rap dan slippers", "lap tai dan slippers", "tap trac dan slippers", "lap tran dang slippers", "lap thuat dan slippers", "lap tran danh slippers", "lap trat dan slippery", "lap trat 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: (((("lap trat 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: (((("lap trat dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap trat dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap trat dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.