Perhaps you should try some spelling variations:
trung thanh » truong thanh
nhiet tach » chiet tach
hoc nhiet » hoc thiet, hoc nghien, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
dang nong » dang cong, hang nong, tang nong
nong van » song van, nong dan, nong san
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: hoc nhiet tach - hanh ((trung thanh) or (tran tuan)) dang nong van ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhiet tach - hanh ((trung thanh) OR (tran tuan)) dang nong van ((toan tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - hanh ((trung thanh) or (tran tuan)) dang nong van ((toan tap) or (van ban))*.