Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu thi hoan snippets" » "chu thi hoa snippets", "chu thi hanh snippets", "chu thi hong snippets", "chuc thi hoan snippets", "cau thi hoan snippets", "chu thich hoan 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 hoan 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 hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu thi hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu thi hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.