Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trong trinh co snippets" » "trong tinh co snippets", "trang trinh co snippets", "trong thinh co snippets", "trong trinh code snippets", "trong trinh do snippets", "trong trinh cong snippets", "trong trinh hoa 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: (((("trong trinh co snippets") or ("data using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong trinh co snippets") OR ("data using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trong trinh co snippets ) or ( data using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong trinh co snippets") or ("data using java snippets"))) or ("locating bug core snippets"))*.