Perhaps you should try some spelling variations:
tinh lai » tinh lao, tinh hai, minh lai
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cua triet, dua tren
va tinh » may tinh
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
cam tu » cam thu, nam tu, dam tu
ve cam » ve cham, ve cac, va cam

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 x) or (lang xa)) hoi. hieu ve cam tu va tinh lai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang x) OR (lang xa)) hoi. hieu ve cam tu va tinh lai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang x) or (lang xa)) hoi. hieu ve cam tu va tinh lai ((cua tre) or (cuu tre))*.