Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu tinh cao snippets" » "chau tinh cao snippets", "chua tinh cao snippets", "cuu tinh cao snippets", "chu tinh lao snippets", "chu tinh chat snippets", "chu tinh cach 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 tinh cao 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 tinh cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu tinh cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu tinh cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.