Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong doan » phuong loan, phuong hoang, huong dan
chieu sach » chinh sach, chiet tach, chieu sang
trung vap » trung cap, trung va, trung lap
trung van » truong van, trong van, trung va
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((trung vap) or (trung van)) nhung phuong doan ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trung vap) OR (trung van)) nhung phuong doan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((trung vap) or (trung van)) nhung phuong doan ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trung vap) or (trung van)) nhung phuong doan ((toan cau) OR (toan tap))*.