Perhaps you should try some spelling variations:
trong xa » trong xay, trong ca, trong xu
chat huu » pham huu
danh vai » danh sai, danh va, doanh van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
va danh » va dinh, va dan, va hanh
huu va » cuu va, tuu va
vai va » mai va, dai va, hai va
thiet » thieu

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 ky ((tang xa) or (trong xa)) hoi. hieu ve chat huu va danh vai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((tang xa) OR (trong xa)) hoi. hieu ve chat huu va danh vai va thiet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((tang xa) or (trong xa)) hoi. hieu ve chat huu va danh vai va thiet*.