Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
tang vanm » dang van, lang van, tong van
thu sach » tu sach, thuat sach, thuoc sach
tang van » dang van, hoang van, trong van
va thanh » gia thanh, ban thanh, va tinh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
tan van » tran van, luan van, dang van
sach ty » sach y, sach tu, sach thu
cuc tre » duc tre, cua tre, cuu tre
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty ((tang van) or (((tang vanm) OR (tan van)))) hoi. hieu va cam duc va thanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty ((tang van) OR (((tang vanm) OR (tan van)))) hoi. hieu va cam duc va thanh tai cuc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty ((tang van) or (((tang vanm) OR (tan van)))) hoi. hieu va cam duc va thanh tai cuc tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ty ((tang van) or (((tang vanm) OR (tan van)))) hoi. hieu va cam duc va thanh tai cuc tre*.