Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van than cau snippets" » "van than code snippets", "van thanh cau snippets", "van thang cau snippets", "van tuan cau snippets", "van toan cau snippets", "van phan cau snippets", "van than cap 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 than cau 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 than cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van than cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van than cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.