Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"van cong thai snippets" » "van cong hai snippets", "van hong thai snippets", "van cong thanh snippets", "van dong thai snippets", "van phong thai snippets", "phan cong thai snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using data java snippets") or ("van cong thai snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data java snippets") OR ("van cong thai snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( van cong thai snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") or ("van cong thai snippets"))) or ("locating bug core snippets"))*.