Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"data using java snippets" » "data using data snippets"
"dung van cong snippets" » "duong van cong snippets", "dung va cong snippets", "dang van cong snippets", "dung van dong snippets", "dung van phong snippets", "dung phan 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: (((("data using java snippets") or ("dung van cong snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("dung van cong snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( dung van cong snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("dung van cong snippets"))) or ("locating bung code snippets"))*.