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