Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"voi quoc lan snippets" » "voi cuoc lan snippets", "vuon quoc lan snippets", "mai quoc lan snippets", "voi quoc ban snippets", "voi nuoc luan snippets", "voi 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: (((("voi quoc lan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi quoc lan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( voi quoc lan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi quoc lan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.