Perhaps you should try some spelling variations:
thien van » thi van
cua nuoc » cua quoc, cua nguoi, cua thuoc
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, lieu va, hieu ve
dung ha » dung va, dung he, dung khoa
duc van » duc va, duc tan, duc manh
dang ha » dong ha, lang ha, tang ha
vai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky ((dang ha) or (dung ha)) noi. ((hieu van) or (thien van)) pham duc van hanh vai cua nuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((dang ha) OR (dung ha)) noi. ((hieu van) OR (thien van)) pham duc van hanh vai cua nuoc.
• Adding a wildcard symbol may retrieve word variants: su sac ky ((dang ha) or (dung ha)) noi. ((hieu van) or (thien van)) pham duc van hanh vai cua nuoc*.