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