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