Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"missing java java snippets" » "missing data java snippets", "using java java snippets"
"bi cong tac snippets" » "bi cong ty snippets", "bo cong tac snippets", "tai cong tac snippets", "thi cong tac 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: "((((\"missing java java snippets\") OR (\"bi cong tac snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( missing java java snippets ) OR ( bi cong tac snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("missing java java snippets") OR ("bi cong tac snippets"))) OR ("locating bug core snippets"))*.