Perhaps you should try some spelling variations:
thien van » thi van
dau tren » dau tien, dat tren, dau tieng
thanh va » thanh van, hanh va, thanh ha
tang van » hoang van, trong van, tang luan
va thanh » gia thanh, ban thanh, va tinh
dang van » hoang van, hang va
nam xua » nam cua, nam mua, nam qua
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nam xuc » cam xuc, nam thuc, nam duoc
va dau » va dao

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 ky ((tang van) or (dang van)) hoe. thien van ((nam xuc) OR (nam xua)) va thanh va dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((tang van) OR (dang van)) hoe. thien van ((nam xuc) OR (nam xua)) va thanh va dau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((tang van) or (dang van)) hoe. thien van ((nam xuc) OR (nam xua)) va thanh va dau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((tang van) or (dang van)) hoe. thien van ((nam xuc) OR (nam xua)) va thanh va dau tren*.