Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu khong mo snippets" » "he khong mo snippets", "thi khong mo snippets", "chu trong mo snippets", "chu khong co snippets", "chu khong lo snippets", "chu phong mo 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 khong mo 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 khong mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu khong mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu khong mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.