Perhaps you should try some spelling variations:
"dang sinh java snippets" » "dang dinh java snippets", "khang sinh java snippets", "dang hanh java snippets", "dang trinh java snippets", "dang using java snippets", "dang sinh va snippets", "dang sinh java slippers"
"duong cao code snippets" » "duong co code snippets", "duong dao code snippets", "duong cac code snippets", "duong cao cong snippets", "duong cao de snippets", "duong cfd code snippets", "duong cao code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("dang sinh java snippets") or ("duong cao code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang sinh java snippets") OR ("duong cao code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang sinh java snippets ) or ( duong cao code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang sinh java snippets") or ("duong cao code snippets"))) or ("locating bug code snippets"))*.