Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thi tac dau snippets" » "thi tam dau snippets", "thi thao dau snippets", "thi tran dau snippets", "thi tac da snippets", "thi tac dao snippets", "thi thau dau 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: "((((\"python using java snippets\") OR (\"thi tac dau snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( thi tac dau snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("thi tac dau snippets"))) OR ("locating bug core snippets"))*.