Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh hai » thanh phan, thanh hoa, thanh san
tay lang » tai lang, tay tang, tay quang
xa thanh » va thanh, ha thanh, ta thanh
cam tuc » cam xuc, cam tu, nam thuc
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
ty lang » ty xang, ty hang, tu lang
cua tre » cua te, cua triet, dua tren
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: thuat sach ((ty lang) OR (tay lang)) xa hoi. hieu ve cam tuc xa thanh hai ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ty lang) OR (tay lang)) xa hoi. hieu ve cam tuc xa thanh hai ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((ty lang) OR (tay lang)) xa hoi. hieu ve cam tuc xa thanh hai ((cuu tre) or (cua tre))".
• Adding a wildcard symbol may retrieve word variants: thuat sach ((ty lang) OR (tay lang)) xa hoi. hieu ve cam tuc xa thanh hai ((cuu tre) or (cua tre))*.