Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
dua tren » dung tren
te sach » toc sach
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc gia » quoc gia
y nang » ky nang, ly nang, v nang
cua te » cua tu
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((x hoi) OR (xa hoi)). hieu ve pham duc gia thanh dai ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((x hoi) OR (xa hoi)). hieu ve pham duc gia thanh dai ((dua tren) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((x hoi) OR (xa hoi)). hieu ve pham duc gia thanh dai ((dua tren) or (cua te))*".