Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van nhan can snippets" » "van nhan code snippets", "van phan can snippets", "van thanh can snippets", "danh nhan can snippets", "van nhan chan snippets", "van nhan dan snippets", "van nhan van 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: (((("van nhan can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van nhan can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van nhan can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van nhan can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.