Perhaps you should try some spelling variations:
thien van » thi van
cham duc » pham duc, pham duy, phan duc
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
ky dang » ky danh
vai cua » dai cua, hai cua, lai cua
cua duc » cua tuc, cua nuoc, cua quoc
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) or (ky nang)) ha noi. thien van ((cham duc) OR (cham soc)) ban hanh vai cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky dang) OR (ky nang)) ha noi. thien van ((cham duc) OR (cham soc)) ban hanh vai cua duc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ((ky dang) or (ky nang)) ha noi. thien van ((cham duc) OR (cham soc)) ban hanh vai cua duc".
• Adding a wildcard symbol may retrieve word variants: su sac ((ky dang) or (ky nang)) ha noi. thien van ((cham duc) OR (cham soc)) ban hanh vai cua duc*.