Perhaps you should try some spelling variations:
"thep xanh nam sinh hoc." » "heo xanh nam sinh hoc.", "thep bang nam sinh hoc.", "thep hinh nam sinh hoc.", "thep hanh nam sinh hoc.", "thep xanh lam sinh hoc.", "thep danh nam sinh hoc.", "thep xanh nam dinh hoc.", "thep xanh nam linh hoc.", "thep xanh tam sinh hoc."
"thep xanh tam li f.c." » "heo xanh tam li f.c.", "thep bang tam li f.c.", "thep hinh tam li f.c.", "thep xanh lam li f.c.", "thep canh tam li f.c.", "thep hanh tam li f.c."
"thuc hanh lam dinh cuu." » "thuc thanh lap dinh cuu.", "thuc hanh kem dinh cuu.", "thuc hanh va dinh cuu.", "thuc hanh nam dinh cuu.", "thuc hanh lam tinh cuu.", "thuc hanh lam linh cuu.", "thuc hanh lam dinh chi."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("thep xanh nam sinh hoc.") or ("thuc hanh lam dinh cuu."))) or ("thep xanh tam li f.c."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thep xanh nam sinh hoc.") OR ("thuc hanh lam dinh cuu."))) OR ("thep xanh tam li f.c.")).
• Removing quotes may allow a broader search: (((( thep xanh nam sinh hoc. ) or ( thuc hanh lam dinh cuu. ))) or ( thep xanh tam li f.c. )).
• Adding a wildcard symbol may retrieve word variants: (((("thep xanh nam sinh hoc.") or ("thuc hanh lam dinh cuu."))) or ("thep xanh tam li f.c."))*.