Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu trinh he snippets" » "chu thich he snippets", "chu tich he snippets", "chu dinh he snippets", "chu trinh han snippets", "chu trinh hoa snippets", "chu trinh ky 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 trinh he 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 trinh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu trinh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu trinh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.