Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang vu thi slippers" » "nang du thi slippers", "nang tu thi slippers", "nang su thi slippers", "nang vu thi slippery", "nang 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: (((("nang 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: (((("nang vu thi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang vu thi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang vu thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.