Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ly doi snippets" » "nhan y doi snippets", "nha ly doi snippets", "nhan ky doi snippets", "nhan ly dai snippets", "nhan ly do 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: (((("nhan ly doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan ly doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ly doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ly doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.