Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hai cuc snippets" » "van hai code snippets", "van ha cuc snippets", "van chat cuc snippets", "van hanh cuc snippets", "van tai cuc snippets", "van hai cua snippets", "van thai cua 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 hai cuc 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 hai cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van hai cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hai cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.