Perhaps you should try some spelling variations:
"trong tu chon snippets" » "trong thu chon snippets", "trong tuc chon snippets", "trong su chon snippets", "trong tu choi snippets", "trong tu hon snippets", "trong lua chon snippets"
"dung va java snippets" » "dung java java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 va java snippets") or ("trong tu chon snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung va java snippets") OR ("trong tu chon snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( trong tu chon snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("trong tu chon snippets"))) or ("locating bug code snippets"))*.