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