Perhaps you should try some spelling variations:
dieu kien » dieu khien, dien bien
hanh vai » hanh vi, hanh va, hanh tai
kien cac » vien cac, dien cac, kien mac
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
lang xa » dang xay, lang van
lang ha » long ha
sach ky » sac ky, sach ty, sach kem
cac ly » cac ky, cac le, cam ly
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) OR (sach y)) ((lang xa) or (lang ha)) hoi. dieu kien cac ly va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) ((lang xa) OR (lang ha)) hoi. dieu kien cac ly va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach y)) ((lang xa) or (lang ha)) hoi. dieu kien cac ly va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sach y)) ((lang xa) or (lang ha)) hoi. dieu kien cac ly va hanh vai cua te*.