Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat mon con snippets" » "nhap mon con snippets", "nhat moi con snippets", "hat mon con snippets", "nhat lon con snippets", "nhat mot con 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 mon con 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 mon con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat mon con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat mon con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.