Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
cau tren » dau tren, ca tren, cau treo
hanh tai » thanh tai, hang tai, han tai
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
cu tren » tu tren, dua tren
lieu ha » lieu nha, lieu va, liem ha
cao hoi » cau hoi, co hoi, cao hoc
tu sach » thu sach, su sach, te sach
tu sac » tu cac, tu san, 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 sach)) ky nang cao hoi. lieu ha nam thuc xa hanh tai ((cau tren) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky nang cao hoi. lieu ha nam thuc xa hanh tai ((cau tren) OR (cu tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky nang cao hoi. lieu ha nam thuc xa hanh tai ((cau tren) or (cu tren))".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu sach)) ky nang cao hoi. lieu ha nam thuc xa hanh tai ((cau tren) or (cu tren))*.