Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trong thi cac snippets" » "trong thi code snippets", "trong thoi cac snippets", "trong thu cac snippets", "trong tho cac snippets", "trong thi cuc snippets", "trong tai cac snippets", "trong thi tac 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 thi cac 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 thi cac snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trong thi cac snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong thi cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.