Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lap van toan snippets" » "lap van code snippets", "lap van tuan snippets", "lap van tan snippets", "lap van thanh snippets", "lap va toan snippets", "tap van toan snippets", "lap ban toan snippets"
"python using java snippets" » "python using data snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lap van toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"lap van toan snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( lap van toan snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap van toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.