Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"van nhan java snippets" » "van nhan va snippets", "van phan java snippets", "van thanh java snippets", "danh nhan java snippets"
"dung cac cong snippets" » "luong cac cong snippets", "dung cho cong snippets", "dung tai cong snippets", "dung cua cong 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: (((("van nhan java snippets") or ("dung cac cong snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van nhan java snippets") OR ("dung cac cong snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( van nhan java snippets ) or ( dung cac cong snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van nhan java snippets") or ("dung cac cong snippets"))) or ("locating bugs code snippets"))*.