Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"deu may minh snippets" » "deu may tinh snippets", "deu mai minh snippets", "deu van minh snippets", "dau may minh snippets", "yeu may minh snippets", "lieu may minh snippets", "deu may minh slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("deu may minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("deu may minh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( deu may minh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("deu may minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.