Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tu chon cau snippets" » "tu chon code snippets", "tu chon cac snippets", "tu chon chu snippets", "tu thong cau snippets", "tu choi cau snippets", "tu hon cau snippets", "lua chon cau 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: (((("tu chon 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: (((("tu chon cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tu chon cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu chon cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.