Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
va trinh » van trinh, va tinh, lap trinh
cau tren » cu tren, dau tren, cau treo
hieu van » hieu va, thien van, lieu va
ca tren » cu tren, la tren, co tren
nam mua » nam cua, nam qua, nam luat
nam xua » nam cua, nam qua, nam luat
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
bai ky » ban ky, sai ky, bac ky
te bai » te bao, te tai, te ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bai ky lang xa hoi. hieu van ((nam xua) or (nam mua)) va trinh van ((cau tren) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bai ky lang xa hoi. hieu van ((nam xua) OR (nam mua)) va trinh van ((cau tren) OR (ca tren)).
• Adding a wildcard symbol may retrieve word variants: te bai ky lang xa hoi. hieu van ((nam xua) or (nam mua)) va trinh van ((cau tren) or (ca tren))*.