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