Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
cau tren » cu tren, dau tren, cau treo
hanh tai » thanh tai, hang tai, han tai
thuoc xa » thuoc ma, thuoc va, thuoc la
xa hanh » xa thanh, xa khanh, va hanh
ca tren » cu tren, la tren, co tren
lieu ha » lieu nha, lieu va, liem ha
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
tu san » thu san, tu ban, tu can
tu sac » tu sach, tu cac, tu bac

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 san)) ky nang ma hoi. lieu ha nam thuoc xa hanh tai ((cau tren) OR (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang ma hoi. lieu ha nam thuoc xa hanh tai ((cau tren) OR (ca tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu san)) ky nang ma hoi. lieu ha nam thuoc xa hanh tai ((cau tren) OR (ca tren))".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky nang ma hoi. lieu ha nam thuoc xa hanh tai ((cau tren) OR (ca tren))*.