Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong doi deu snippets" » "vong doi deu snippets", "dong doi deu snippets", "mong do deu snippets", "mong doi dau snippets", "mong doi de snippets", "mong moi dieu 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: (((("mong doi deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mong doi deu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong doi deu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong doi deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.