Perhaps you should try some spelling variations:
van nhanh » van thanh, van hanh, van khanh
nang duoc » ngang duoc, nang doc, nganh duoc
nhanh hai » nhanh thai, thanh hai, nhanh ha
duoc hoi » quoc hoi, duoc hoc, duoc si
vu sach » vu bach, su sach, vu khach
chu tre » cho tre, cuu tre, cau tren
xuc van » duc van, luc van, vuc van
van bac » van bao, van hac, dan bac
chu tri » chua tri, chu thi, chu tai
sach 2 » sach y
2 nang » v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach 2 nang duoc hoi. thien ((van bac) OR (van ban)) xuc van nhanh hai ((chu tre) or (chu tri))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach 2 nang duoc hoi. thien ((van bac) OR (van ban)) xuc van nhanh hai ((chu tre) OR (chu tri))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach 2 nang duoc hoi. thien ((van bac) OR (van ban)) xuc van nhanh hai ((chu tre) or (chu tri))*".