Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung cao anh slippers" » "duong cao anh slippers", "dung cho anh slippers", "dung co anh slippers", "dung cao dang slippers", "dung cao tang slippers", "dung cao bang slippers", "dung cao anh slippery", "dung cao anh 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: (((("dung cao anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cao anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cao anh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cao anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.