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