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