Perhaps you should try some spelling variations:
giau cua » gian cua, gia cua, dieu cua
te sach » toc sach
ky sang » ky dang, ky tang, duy sang
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
via cua » gia cua, gian cua, rija cua
va cam » va cham, va cac, va cao
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: te sach ((ky sang) or (ky nang)) mai hoi. hieu va cam xuc va danh ((via cua) OR (giau cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky nang)) mai hoi. hieu va cam xuc va danh ((via cua) OR (giau cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky sang) or (ky nang)) mai hoi. hieu va cam xuc va danh ((via cua) OR (giau cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky sang) or (ky nang)) mai hoi. hieu va cam xuc va danh ((via cua) OR (giau cua)) tre*.