Perhaps you should try some spelling variations:
tieng sat » tieng nhat, tien mat, tien dat
tieng han » tieng anh
dung php » dung phu, dung phan, dung phat
php phap » phap phat, phap phan, pham phap
viet han » viet phan, viet hang, viet hoan
van dan » van ban, ban dan, van dao
tin » tinh
gian » giao, gia

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung php phap ((tieng sat) OR (tieng han)) ) or ( dinh van dan gian viet han ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung php phap ((tieng sat) OR (tieng han)) ) OR ( dinh van dan gian viet han ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung php phap ((tieng sat) OR (tieng han)) ) or ( dinh van dan gian viet han ))*".