Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vong doi hoi snippets" » "vong doi code snippets", "trong doi hoi snippets", "huong doi hoi snippets", "dung doi hoi snippets", "vong doi thoi snippets", "vong doi voi snippets", "vong doi moi snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vong doi hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vong doi hoi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vong doi hoi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vong doi hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.