Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac thi mot snippets" » "khau thi mot snippets", "khuc thi mot snippets", "khuat thi mot snippets", "khac thi mo snippets", "khac tri mot snippets", "khac thi moi 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: (((("khac thi mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khac thi mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac thi mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac thi mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.