Perhaps you should try some spelling variations:
gianh lai » gian lan
nam thuoc » nam thuc, nam thu, nha thuoc
va gianh » va gian, van giang, va giai
cuu tre » cua tre, cau tren, cau treo
lai cuu » lai cua, lai chau, lai cuoc
hieu va » lieu va, hieu qua
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
ky sang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky sang ((mai hoi) OR (lai hoi)). hieu va ((nam thuoc) or (cam xuc)) va gianh lai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky sang ((mai hoi) OR (lai hoi)). hieu va ((nam thuoc) OR (cam xuc)) va gianh lai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky sang ((mai hoi) OR (lai hoi)). hieu va ((nam thuoc) or (cam xuc)) va gianh lai cuu tre*".