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