Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"data using java snippets" » "data using data snippets", "data using java slippers"
"cong san trac snippets" » "cong tac trac snippets", "cong sinh trac snippets", "cong phan trac snippets", "cong sat trach snippets", "cong san trac slippers"

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: (((("data using java snippets") or ("cong san trac snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("cong san trac snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( cong san trac snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("cong san trac snippets"))) or ("locating bugs code snippets"))*.