Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"data using java snippets" » "data using data snippets", "data using java slippers"
"dong anh trac snippets" » "hong anh trac snippets", "dong thanh trac snippets", "hoang anh trac snippets", "dong sinh trac snippets", "dong anh tuan snippets", "dong anh thuc snippets", "dong anh trac slippers"

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 ("dong anh trac snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("dong anh trac snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( dong anh trac snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("dong anh trac snippets"))) or ("locating bugs code snippets"))*.