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