Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
tu sach » thu sach, su sach, te sach
danh ca » doanh cua, danh cho, danh gia
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac 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 nang mai hoi. hieu va chat ((xuc va) OR (tuc va)) ((danh ca) or (dan ca)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang mai hoi. hieu va chat ((xuc va) OR (tuc va)) ((danh ca) OR (dan ca)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang mai hoi. hieu va chat ((xuc va) OR (tuc va)) ((danh ca) or (dan ca)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang mai hoi. hieu va chat ((xuc va) OR (tuc va)) ((danh ca) or (dan ca)) cuu tre*.