Perhaps you should try some spelling variations:
han thai » han tai, ban thai, van thai
va thieu » va thiet, va hieu, va tieu
so sach » so sanh, bo sach, co sach
lang xa » lang ha, dang xay, lang van
hieu vu » hieu va, hieu ve, hieu su
thai va » thai van
y lang » o lang, _ lang, tay lang
vu cam » vu cham, vu cao, va cam
xuc va » tuc va, luc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y lang xa hoi. hieu vu cam ((xuc va) or (duc va)) han thai va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y lang xa hoi. hieu vu cam ((xuc va) OR (duc va)) han thai va thieu.
• Adding a wildcard symbol may retrieve word variants: so sach y lang xa hoi. hieu vu cam ((xuc va) or (duc va)) han thai va thieu*.