Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"van hang code snippets" » "van hang cong snippets", "van khang code snippets", "van hoang code snippets", "van thang code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van hang code snippets") OR ("using java java snippets"))) OR ("locating bug code slippers"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"van hang code snippets\") OR (\"using java java snippets\"))) OR (\"locating bug code slippers\"))".
• Removing quotes may allow a broader search: (((( van hang code snippets ) OR ( using java java snippets ))) OR ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("van hang code snippets") OR ("using java java snippets"))) OR ("locating bug code slippers"))*.