Perhaps you should try some spelling variations:
thanh tung » thanh cong
theo kha » theo phap, thao khoa, theo chu
kha nang » phap nang, ky nang, ki nang
tung cap » trung cap, cung cap, thong cap
can cong » cac cong, cao cong, van cong
cong dan » cong san, cong tan, huong dan
toan tap » toan ban
cap can » cap han, cap van, tap can

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo kha nang - thanh tung cap can cong dan ((doanh tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo kha nang - thanh tung cap can cong dan ((doanh tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo kha nang - thanh tung cap can cong dan ((doanh tai) or (toan tap))*.