Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi phap cau snippets" » "doi phap code snippets", "doi phat cau snippets", "gioi phap cau snippets", "hoc phap cau snippets", "doi phan cau snippets", "doi pha cau snippets", "doi phap ca 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: (((("python using java snippets") or ("doi phap cau snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi phap cau snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( doi phap cau snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("doi phap cau snippets"))) or ("locating bug core snippets"))*.