Perhaps you should try some spelling variations:
thanh tung » thanh cong
nong tuong » cong thuong, dong thuong, nang truong
tuong dan » huong dan, tung dan, xuong dan
tung cuu » trung cua, trung cau, tuong cua
cuu nong » cuu cong, cuu nang, cuu tong
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
chu van » chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu van) or (cuu van)) - thanh tung cuu nong tuong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu van) OR (cuu van)) - thanh tung cuu nong tuong dan than cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu van) or (cuu van)) - thanh tung cuu nong tuong dan than cau*.