Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong thi va slippers" » "luong thi va slippers", "dang thi va slippers", "duong thi van slippers", "duong thi ha slippers", "duong phi va slippers", "duong thi va slippery", "duong thi va grippers"
"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: (((("duong thi va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong thi va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong thi va slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong thi va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.