Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuon va dong snippets" » "chon va dong snippets", "buon va dong snippets", "con va dong snippets", "cuon van dong snippets", "cuon ha dong snippets", "cuon xa 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: (((("cuon va 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: (((("cuon va dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon va dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon va dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.