Perhaps you should try some spelling variations:
triet tinh » trieu tinh, trien kinh, tri tinh
trien tinh » trieu tinh, trien kinh, trien minh
nhung cong » dung cong, thong cong, hang cong
cang hang » cang thang, hang hang, nang hang
cong vang » cong lang, cong quang, cong ngang
toan cao » toan ban
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: mao ((triet tinh) or (trien tinh)) - cang hang va nhung cong vang ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mao ((triet tinh) OR (trien tinh)) - cang hang va nhung cong vang ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: mao ((triet tinh) or (trien tinh)) - cang hang va nhung cong vang ((toan cao) or (toan tap))*.