Perhaps you should try some spelling variations:
lang thai » lang chai, dang thai, hoang thai
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
dua tren » dung tren
lang hai » lang chai, lang ha, hang hai
tinh lai » tinh lao, tinh hai, minh lai
va tinh » may tinh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty ((lang hai) OR (lang thai)) hoi. hieu ve cham xuc va tinh lai ((dua tren) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty ((lang hai) OR (lang thai)) hoi. hieu ve cham xuc va tinh lai ((dua tren) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty ((lang hai) OR (lang thai)) hoi. hieu ve cham xuc va tinh lai ((dua tren) or (cua tre))".
• Adding a wildcard symbol may retrieve word variants: toc sach ty ((lang hai) OR (lang thai)) hoi. hieu ve cham xuc va tinh lai ((dua tren) or (cua tre))*.