Perhaps you should try some spelling variations:
ve triet » va trien, su triet
van hang » van khang, van hoang, van thang
thuc van » thuc vat, thuc dan, thuc va
hang te » hang ke, hang tu, hang ve
va cham » va chat, va tham
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
vu sach » vu bach, su sach, vu khach
va cam » va cac, va cao, va cai
ma hoi » mai hoi, xa hoi, ma hoa
te ve » te va, te vi, de ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (vu sach)) ky nang ma hoi. lieu ((va cam) OR (va cham)) thuc van hang te ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) ky nang ma hoi. lieu ((va cam) OR (va cham)) thuc van hang te ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (vu sach)) ky nang ma hoi. lieu ((va cam) OR (va cham)) thuc van hang te ve triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ky nang ma hoi. lieu ((va cam) OR (va cham)) thuc van hang te ve triet*.