Perhaps you should try some spelling variations:
thanh dai » thanh tai, thanh dat, thanh oai
thanh hai » thanh phan, thanh hoa, thanh san
dua tren » dung tren
tu sach » thu sach, su sach, te sach
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
sach v » sach va, sach y, sach 2
ve cam » ve cham, ve cac, va cam
v nang » va nang, vu nang, van nang
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

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