Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"cho phan data slippers" » "cho phan dau slippers", "cho phan dang slippers", "cho phan dai slippers", "co phan data slippers", "hoc phan data slippers", "hoa phan data slippers", "cho phan data slippery", "cho phan data grippers"

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: (((("cho phan data slippers") or ("using java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho phan data slippers") OR ("using java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( cho phan data slippers ) or ( using java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho phan data slippers") or ("using java java snippets"))) or ("locating bugs code snippets"))*.