Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"minh chanh cau snippets" » "minh thanh cau snippets", "minh danh cau snippets", "dinh thanh cau snippets", "minh chinh cau snippets", "minh nhanh cau snippets", "minh thanh chau snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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: (((("using java code snippets") or ("minh chanh cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("minh chanh cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( minh chanh cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("minh chanh cau snippets"))) or ("locating bug code snippets"))*.