Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doi quoc ban snippets" » "doi cuoc ban snippets", "voi quoc ban snippets", "dong quoc ban snippets", "doi quoc bao snippets", "doi quoc lan snippets", "doi quoc quan snippets"

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

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