Perhaps you should try some spelling variations:
sang dai » sang tai, lang dai, sang mai
tu sach » thu sach, su sach, te sach
ky sang » ky nang, ky dang, ky tang
dai hoi » dai hoc, dai hai, dai moi
va hanh » van hanh, va thanh, va danh
ve cac » va cac, vien cac
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
tu sac » tu cac, tu san, tu bac
ve cam » ve cham, va cam, ve cai
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu sach)) ky sang dai hoi. hieu ((ve cam) or (ve cac)) xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky sang dai hoi. hieu ((ve cam) OR (ve cac)) xuc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky sang dai hoi. hieu ((ve cam) or (ve cac)) xuc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu sach)) ky sang dai hoi. hieu ((ve cam) or (ve cac)) xuc va hanh vi cua te*.