Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong va moi snippets" » "thong cua moi snippets", "truong va moi snippets", "thong qua moi snippets", "thong va mot snippets", "thong ve moi snippets", "thong va mo 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: (((("thong va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong va moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong va moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.