Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sach » chinh sach, chiet tach, chieu sang
phuong van » phung van, phong van, phuong lan
hoc chieu » hoc thieu, ho chieu, hoc hien
trung vap » trung cap, trung va, trung lap
trung van » truong van, trong van, trung va
khoan cam » khoa cam, khoan va, phan cam
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 chieu sach - hanh ((trung vap) or (trung van)) nhung phuong van ((than cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trung vap) OR (trung van)) nhung phuong van ((than cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trung vap) or (trung van)) nhung phuong van ((than cap) or (khoan cam))*.