Perhaps you should try some spelling variations:
thiet danh » thien danh, thien anh, thien dang
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trinh van » trinh han, trinh quan, trinh toan
cong dang » cong dong, cong dan, cong dung
dang toan » dang tran, dan toan, dung toan
trang va » tran van, hang va
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 thiet danh - hanh ((trinh van) or (trang va)) nhung cong dang toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - hanh ((trinh van) OR (trang va)) nhung cong dang toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - hanh ((trinh van) or (trang va)) nhung cong dang toan tap*.