Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap tai can snippets" » "pham tai can snippets", "phap thi can snippets", "phap tang can snippets", "phap tai san snippets", "phap tai cac snippets", "phap tai ban 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 tai can 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 tai can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap tai can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap tai can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.