Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi benh cho snippets" » "khi ben cho snippets", "kham benh cho snippets", "khoa benh cho snippets", "khi benh kho snippets", "khi benh co snippets", "khi benh chua 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: (((("khi benh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi benh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi benh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi benh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.