Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap dong le snippets" » "phan dong le snippets", "phap cong le snippets", "pham dong le snippets", "phap duong le snippets", "phap dung le snippets", "phap hong le 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: (((("phap dong le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap dong le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap dong le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap dong le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.