Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"data using java snippets" » "data using data snippets"
"dung thi cham snippets" » "dung tai cham snippets", "dung tri cham snippets", "dung chi cham snippets", "dung thi hai snippets", "dung toc cham snippets", "dung thi ha 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: (((("dung thi cham snippets") or ("data using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung thi cham snippets") OR ("data using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung thi cham snippets ) or ( data using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thi cham snippets") or ("data using java snippets"))) or ("locating bugs code snippets"))*.