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 duong han snippets" » "van dong han snippets", "van dung han snippets", "van phong han snippets", "van duong van snippets", "van duong san snippets", "van duong dan 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 duong han snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using data java snippets\") OR (\"van duong han snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( using data java snippets ) OR ( van duong han snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") OR ("van duong han snippets"))) OR ("locating bug core snippets"))*.