Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"missing data code snippets" » "using data code snippets", "missing rate code snippets", "missing data code slippers"
"dung he duc snippets" » "dung cho duc snippets", "dung le duc snippets", "dung ho duc snippets", "dung ve duc snippets", "dung he duc slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("missing data code snippets") or ("dung he duc snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("missing data code snippets") OR ("dung he duc snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( missing data code snippets ) or ( dung he duc snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("missing data code snippets") or ("dung he duc snippets"))) or ("locating bugs code snippets"))*.