Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc hanh cac snippets" » "thuc hanh cac snippets", "tuc thanh cac snippets", "duc hanh cac snippets", "tuc hang cac snippets", "tuc hanh cat snippets", "tuc nhanh cay 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: (((("tuc hanh cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuc hanh cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuc hanh cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc hanh cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.