Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
thiet tach » chiet tach, thien hach, thuat tach
trung tuan » trung thanh, trung tam, tran tuan
phuong dan » phuong doan, huong dan, phuong lan
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet tach - hanh ((tranh cua) or (trung tuan)) nhung ((phuong dan) OR (phuong danh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - hanh ((tranh cua) OR (trung tuan)) nhung ((phuong dan) OR (phuong danh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet tach - hanh ((tranh cua) or (trung tuan)) nhung ((phuong dan) OR (phuong danh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - hanh ((tranh cua) or (trung tuan)) nhung ((phuong dan) OR (phuong danh)) toan ban*.