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