Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu thi cham snippets" » "chu thi hai snippets", "chu toc cham snippets", "chu thi ha snippets", "chuc thi cham snippets", "cau thi cham snippets", "chu thich cham 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: (((("chu thi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu thi cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu thi cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu thi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.