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