Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan danh ca snippets" » "luan danh ca snippets", "quan hanh ca snippets", "qua danh ca snippets", "quan dan ca snippets", "quan doanh cua snippets", "quan danh cho 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: (((("quan danh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan danh ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan danh ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan danh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.