Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hon nhan vo snippets" » "hoc nhanh vo snippets", "cong nhan vo snippets", "van nhan vo snippets", "hon nhan va snippets", "hon nhan mo snippets", "hon than vo 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: (((("hon nhan vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hon nhan vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hon nhan vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hon nhan vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.