Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
trinh vat » trinh van, trinh luat, sinh vat
ho chieu » theo chieu, hoc thieu, doi chieu
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam
doi chi » doi khi
tinh va » tich va, trinh van, tinh gia

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chi) or (ho chieu)) tinh - hanh ((tinh va) OR (trinh vat)) nhung huong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (ho chieu)) tinh - hanh ((tinh va) OR (trinh vat)) nhung huong dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chi) or (ho chieu)) tinh - hanh ((tinh va) OR (trinh vat)) nhung huong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (ho chieu)) tinh - hanh ((tinh va) OR (trinh vat)) nhung huong dan khan cap*.