Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trong trong co snippets" » "trong truong co snippets", "truong trong co snippets", "thong trong co snippets", "trong trong code snippets", "trong trong ca snippets", "trong trong cong snippets", "trong trong cuoc snippets"
"dung java java snippets" » "dung va java 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 trong co snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong trong co snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trong trong co snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong trong co snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.