Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat thi hoa snippets" » "nhat tai hoa snippets", "chat thai hoa snippets", "khuat thi hoa snippets", "nhat thi hoan snippets", "nhat thi ha snippets", "nhat thi hong 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 thi hoa 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 thi hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat thi hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat thi hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.