Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van dua hon snippets" » "van dua code snippets", "van duy hon snippets", "van du hon snippets", "van duc hon snippets", "van cua hon snippets", "van lua chon snippets", "van dua khen snippets"
"python using java snippets" » "python using data snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van dua hon 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 dua hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van dua hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van dua hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.