Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lu hanh cham snippets" » "lu hanh code snippets", "lu thanh cham snippets", "lu thanh pham snippets", "lu khanh pham snippets", "luu hanh cham snippets", "du hanh cham snippets", "ly hanh cham 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: (((("lu hanh cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lu hanh cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lu hanh cham snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lu hanh cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.