Perhaps you should try some spelling variations:
dau tren » dau tien, dat tren, dau tieng
hanh tai » thanh tai, hang tai, han tai
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
van chat » cao chat
sach ty » sach y, sach tu, sach thu
tang ma » mang may, tang van
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va

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 ty ((tang ma) OR (nang x)) hoi. hieu van chat xuc va hanh tai ((cuu tre) OR (dau tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((tang ma) OR (nang x)) hoi. hieu van chat xuc va hanh tai ((cuu tre) OR (dau tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((tang ma) OR (nang x)) hoi. hieu van chat xuc va hanh tai ((cuu tre) OR (dau tren))*.