Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"va dung he snippets" » "van dung he snippets", "va duong he snippets", "vat dung he snippets", "va dung cho snippets"

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