Perhaps you should try some spelling variations:
hoc thuyet » hoc chuyen
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc hien, toc thieu
pha nhung » phai nhuong, tham nhung, phan chung
tung pha » tung pham, trung phan, trung phat
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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) or (hoc thuyet)) danh - thanh tung pha nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thuyet)) danh - thanh tung pha nhung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thuyet)) danh - thanh tung pha nhung cong dan toan cao*.