Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"hoi dong van snippets" » "hop dong van snippets", "hoat dong van snippets", "ha dong van snippets", "hoi duong van snippets", "hoi dang van snippets", "hoi dong von 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 java java snippets\") OR (\"hoi dong van snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( hoi dong van snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("hoi dong van snippets"))) OR ("locating bug core snippets"))*.