Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong code slippers"
"van quan code snippets" » "van quan che snippets", "van quan co snippets", "van ban code snippets", "van quan code 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: (((("van quan code snippets") or ("dung trong code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van quan code snippets") OR ("dung trong code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( van quan code snippets ) or ( dung trong code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van quan code snippets") or ("dung trong code snippets"))) or ("locating bugs code snippets"))*.