Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
tang mai » tang ma, tang tai, lang mai
tinh vai » tinh va, tinh hai, tinh bai
va tinh » may tinh
cuu tre » cua tre, cau tren, cau treo
cham lo » cham o, cam lo, cham soc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
y tang » ky tang, 6 tang, 7 tang
nam lo » nam bo, nam so, nam co
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y tang mai hoi. hieu ve ((cham lo) or (nam lo)) va tinh vai ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y tang mai hoi. hieu ve ((cham lo) OR (nam lo)) va tinh vai ((cua te) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach y tang mai hoi. hieu ve ((cham lo) or (nam lo)) va tinh vai ((cua te) or (cuu tre))*.