Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chu vi trinh snippets" » "chu vi tinh snippets", "chu va trinh snippets", "chu viet trinh snippets", "chu bi trinh snippets", "cuu vi trinh snippets", "thu vi trinh 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: (((("chu vi trinh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu vi trinh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chu vi trinh snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu vi trinh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.