Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu than cua snippets" » "chu thanh cua snippets", "chu han cua snippets", "chu chan cua snippets", "chu nhan cua snippets", "chu thai cua snippets", "chu ban cua 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 than cua 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 than cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu than cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu than cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.