Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung nam anh slippers" » "dong nam anh slippers", "dung lam anh slippers", "sung nam anh slippers", "dung nam danh slippers", "dung tam anh slippers", "dung am anh slippers", "dung nam anh slippery", "dung nam 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 nam 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 nam anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nam anh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nam anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.