Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
hoc khien » hoc hien, hoc nghien, hoc thieu
dung cong » dung trong
khang cu » khung cua, thang cua, chung cu
khan cua » nhan cua, han cua, khien cua
than cua » nhan cua, thai cua, ban cua
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc khien tinh - hanh ((khang cu) or (((khan cua) or (than cua)))) dung cong tac than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien tinh - hanh ((khang cu) OR (((khan cua) OR (than cua)))) dung cong tac than cap.
• Adding a wildcard symbol may retrieve word variants: hoc khien tinh - hanh ((khang cu) or (((khan cua) or (than cua)))) dung cong tac than cap*.