Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"li rac danh snippets" » "li tac danh snippets", "li sach danh snippets", "li cac doanh snippets", "li trac danh snippets", "li cac danh snippets", "ly rac danh snippets", "li rac danh slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("li rac danh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("li rac danh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( li rac danh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("li rac danh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.