Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"xuan can cau snippets" » "xuan can code snippets", "xuan cang cau snippets", "xuan tan cau snippets", "xuan chanh cau snippets", "xuan van cau snippets", "xuan ban cau snippets", "xuan ca 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: (((("xuan can 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: (((("xuan can cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( xuan can cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuan can cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.