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