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