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