Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co tranh che snippets" » "co tranh chap snippets", "co tranh chua snippets", "co tranh cua snippets", "co thanh che snippets", "co trach che snippets", "co trinh che 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: (((("co tranh che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co tranh che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co tranh che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co tranh che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.