Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh luc doi snippets" » "anh duc doi snippets", "nang luc doi snippets", "anh thuc doi snippets", "anh luoc doi snippets", "anh lua doi snippets", "anh luc moi snippets"
"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: (((("anh luc doi 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 luc doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh luc doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh luc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.