Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
thuc dan » thuc hanh, hoc dan, thuc vat
ve triet » va trien, su triet
toan xa » toan xac, toan va, tan xa
hieu ve » hieu va, hieu van
vien ve » vien va, vien he, dien ve
te sai » te tai, te bai, te lai
sai ke » sai ky
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ke toan xa hoi. hieu ve cam ((((tuc va) or (duc va))) or (thuc dan)) thanh vien ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ke toan xa hoi. hieu ve cam ((((tuc va) OR (duc va))) OR (thuc dan)) thanh vien ve triet.
• Adding a wildcard symbol may retrieve word variants: te sai ke toan xa hoi. hieu ve cam ((((tuc va) or (duc va))) or (thuc dan)) thanh vien ve triet*.