Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
tang van » dang van, hoang van, trong van
vu sach » vu bach, su sach, vu khach
van hoi » van hoa, van hoe, van loi
van hac » van ha, van hai, van chat
van hoc » van hoa
duc gia » quoc gia
y tang » ky tang, 6 tang, 7 tang
cua tu » cua tuc, cua su, cua cu

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 y tang van hoi. thi ((van hac) or (van hoc)) duc gia thanh lap ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y tang van hoi. thi ((van hac) OR (van hoc)) duc gia thanh lap ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y tang van hoi. thi ((van hac) or (van hoc)) duc gia thanh lap ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: vu sach y tang van hoi. thi ((van hac) or (van hoc)) duc gia thanh lap ((cua te) OR (cua tu))*.