Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham voi cau snippets" » "pham voi code snippets", "pham vi cau snippets", "cham voi cau snippets", "pham doi cau snippets", "pham voi cac snippets", "pham voi can snippets", "pham hoi 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: (((("pham voi 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: (((("pham voi cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pham voi cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham voi cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.