Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuc thi cua snippets" » "thuc thi cua snippets", "chu thi cua snippets", "thuc thai cua snippets", "chuc thai cua snippets", "chuc thi cuc snippets", "chuc tri 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: (((("chuc thi 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: (((("chuc thi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuc thi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuc thi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.