Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"van dong bac snippets" » "van dong bang snippets", "van dong luc snippets", "van dong hoc 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 ("van dong bac snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("missing data java snippets") OR ("van dong bac snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( missing data java snippets ) or ( van dong bac snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("missing data java snippets") or ("van dong bac snippets"))) or ("locating bug code slippers"))*.