Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"va duong hoi snippets" » "va duong code snippets", "va duong loi snippets", "va dong hoi snippets", "va duong noi snippets", "van duong hoi snippets", "va tuong hoi snippets", "va huong hoi 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: (((("va duong 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: (((("va duong hoi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( va duong hoi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va duong hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.