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