Perhaps you should try some spelling variations:
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets", "using data java slippers"
"van trinh vat snippets" » "van thinh vat snippets", "van tinh vat snippets", "dan trinh vat snippets", "van trinh van snippets", "van trinh luat snippets", "van sinh vat snippets", "van trinh vat slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using data java snippets\") OR (\"van trinh vat snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using data java snippets ) OR ( van trinh vat snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") OR ("van trinh vat snippets"))) OR ("locating bug code snippets"))*.