Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach thi son snippets" » "sach thu son snippets", "sach tai son snippets", "sach thieu son snippets", "sach thai son snippets", "sach thi song snippets", "sach thi mon 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: (((("sach thi 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: (((("sach thi son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach thi son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach thi son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.