Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu trong do snippets" » "chu trang do snippets", "cay trong do snippets", "tu trong do snippets", "chu trong doi snippets", "chu trong dao snippets", "chu trong co 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 trong do 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 trong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu trong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu trong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.